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 Slide Rules, Engineering Slide Rules, Dietzgen Rule US $50.00 
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 VINTAGE FABER CASTELL SLIDE RULE 67/54 RB ADDIATOR US $29.99
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 VINTAGE FABER CASTELL SLIDE RULE 2/83 US $36.00
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 Post Versalog 1460 Slide Rule frederick case vintage japan hemmi ii bamboo model US $90.00
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 VINTAGE USSR SLIDE RULE - 1971 year US $25.00
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 HEMMI SUN BAMBOO SLIDE RULE 130 W GOOD CONDITION + BOX US $31.00
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 VINTAGE RUSSIAN soviet SLIDE RULE 1964 YEAR US $18.00
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 Vintage Pickett Trainer No. 120 White Slide Rule w/Leather Case US $4.00
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 PICKETT N1010T SLIDE RULE WITH BOX, LEATHER CASE & 2 BOOKS @1960 US $15.00
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 VINTAGE RUSSIAN soviet SLIDE RULE 1977 YEAR LSLO-250 US $18.00
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 c1936 USA 4-1/2" diameter CIRCULAR Slide Rule (OVERPRICED??~OK,thenMakeAnOffer!) US $1,000.00
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 VINTAGE RUSSIAN soviet SLIDE RULE 1968 YEAR US $18.00
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 slide rule Russian cubic volume vintage original US $24.99
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 FRENCH GRAPHOPLEX ENGINEER SLIDE RULE CALCULATOR RARE US $70.00
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 #1 ANALOG PICKETTE N902-T SIMPLEX TRIG SLIDE RULE & ORIGINAL LEATHER CASE CASE US $19.99
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 VINTAGE LOGARITHM RULER KL-1 mathematic SLIDE RULES US $49.00
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 Frederick Post Slide Rule model 1450 Purchased in June 1956 US $50.00
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 1973 FINE Faber-Castell TR1 LED Electronic CALCULATOR + SLIDE RULE Almost UNUSED US $499.00
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 Keuffel & Esser Co. Slide Rule #4503-3 1954 - 1956 US $35.00
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 1940 Slide Rule with Case and Papers VERY NICE CONDITION US $17.99
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 Vintage Slide Rule Wood K&E Keuffel Esser Training N4058W US $12.99
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 Vintage PICKETT log log Slide Rule 140 ES Microline Mint NEW OLD STOCK US $19.99
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 rare soviet VINTAGE SLIDE RULE! USSR. with case! US $38.00
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 9" PICKETT SlideRule/ slide rule Box/instructions all metal N1010-ES Vintage US $9.99
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 RARE VINTAGE RUSSIAN SOVIET SLIDE RULE 250mm 1971 YEAR+CASE. USSR US $14.99
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 RARE OLD VINTAGE RUSSIAN SOVIET BOOK "MANUAL SLIDE RULE" 1968.USSR US $24.99
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 RARE PICKETT MICROLINE160 SLIDE RULE CONSOLIDATED BELTING SHEATH MANUAL + CIRCLE US $19.99
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 PARISIAN NOVELTY 7 " POCKET SLIDE RULE IN PAPER POUCH ATLAS CHAIN + MANUAL VGC US $9.99
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 antique / vintage classic no.11 slide rule US $1.56
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 Vintage British Thornton Slide Rule Boxed US $4.73
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 Pickett Simplex Trig Model N902-T Slide Rule Ruler White all metal INV#427 US $19.99
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 ARISTO CHARVOZ 0970 MULTILOG SLIDE RULE US $12.99
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 OLD POCKET SLIDE RULE COMPLETE WITH ORIGINAL PAPER HOLDER AD643 US $19.50
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 1920'S OR OLDER SLIDE RULE WITH ORIGINAL LEATHER CASE COMPLETE AD644 US $69.00
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 Pickett All Metal Slide Rule Original Box Leather Case US $12.99
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 Vintage Soviet Slide Rule 1974 US $15.00
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 VIntage 'DIETZGEN' Slide Rule...w/leather carrying case! US $4.99
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 slide rule US $3.00
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 Vintage Slide Rule J.H. Weil & Co. Denmark Polylog No. 1104 Leather Case US $8.99
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 VINTAGE PICKETT N 3-ES ALL METAL SLIDE RULE WITH LEATHER CASE POWER LOG US $9.99
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 Vintage Concise Circular Slide Rule No. 28N US $12.48
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 How To Use Trig Pickett Slide Rule Maurice Hartung Booklet Manual 1960 US $11.99
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 Vintage Slide Rule How To Book 1955 3rd Edition US $4.95
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 1966 EARLY VINTAGE RUSSIAN SOVIET CELLULOID WOOD ENGINEER SLIDE RULE CALCULATOR US $6.99
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 Vintage 1948 Pickett and Eckel Slide Rule With Leather Case US $9.95
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 Frederick Post Co. # 1447 Hemmi Japan Bamboo Slide Rule with Plastic Case NICE US $9.99
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 VINTAGE KEUFFEL & ESSER K&E 4081-3 LOG LOG DUPLEX DECITRIG SLIDE RULE W/CASE US $29.99
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 VTG CHARLES BRUNING CO. 2420 SLIDE RULE w/CASE & PAPERS US $29.99
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 VINTAGE KEUFFEL & ESSER CO POLYPHASE SLIDE RULE W/ORIGINAL BOX 1 PIECE MISSING US $40.00
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 Pickett Slide Rule Model N 1010-ES Trig with Leather Case US $2.81
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 Pickett Slide Rule Model N 1080-ES The Refinery Supply Company US $5.01
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 Vintage CPC Flight Computer Aviator Aviation Cessna 1978 Circular Slide Rule TOP US $12.00
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 Vintage PICKETT COLLINS C19-T Microwave Transmission Slide Rule, Box, Case +More US $102.50
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 K&E Model 1460 Slide Rule with Leather Case US $29.99
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 Vintage Brown Leather Pickett Large Slide Rule Manual Adding Machine Case Tool US $6.56
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 Antique Slide Rule with Case US $10.00
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 Vintage 1942 How to Use a Slide Rule Eugene Dietzgen Co US $22.47
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 Rare? Faber Crstecc Darmstadt Addiator Slide Rule German Add/Subtract Machine US $9.99
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 Vintage PICKETT Student Trig Slide Rule 120 C-T Microline w/ Instructions MINT US $19.99
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 VINTAGE Pickett All Metal Slide Rule Model 1006, 6" leather case WESTERN STEEL US $49.99
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 Vintage Collectible Russian Special Retro Calculating Slide Rule Mathematics US $35.00
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 Old Halden Calculex Circular Slide Rule US $75.00
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 Keuffel & Esser Log Log Duplex Decitrig Slide Rule 4081-35 1947 US $24.99
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 Slide Rule Pickett Microline No 140 plastic US $40.00
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 Slide Rule Model N1010-T Trig Peckett & Eckel 272 Aluminum 1959 vintage Case US $60.00
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 Slide Rule Pricision Sterling USA Plastic includes case intructions US $60.00
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 Slide Rule Frederic Post Co No. 1445 Sun Hemmi Japan Case US $60.00
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 Slide Rule Pickett Trainer Model 120 with instructions Case Box Plastic US $25.00
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 Slide Rule Pickett Microline No 120 plastic US $40.00
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 Slide Rule Calculator Vintage circular Poket 60`s Russian Russia USSR 1764 US $49.99
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 Slide Rule Redirule Dietzgen No. 1771 Plastic and Case vintage US $35.00
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 Slide Rule Precision Sterling Plastic USA US $35.00
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 1950s Wood & Plastic SLIDE RULE Draft-a-Plan By Lakeside US $5.50
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 1948 Allegheny & Sprague Elec CIRCULAR Slide Rule (OVERPRICED??~Ok,MakeAnOffer!) US $1,000.00
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 Transparent Logarithmic slide rule LOGAREX 27101R -made in Czechoslovakia(S2602) US $24.90
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 Slide Rule Calculator Vintage circular Poket 60`s Russian Russia USSR 1939 US $54.99
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 VINTAGE Lawrence Wooden Slide Rule in Original Package US $4.99
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 SLIDE RULE:Aristo 0908 TRiLOG VINTAGE MINT US $35.99
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 1964 L E JONES CO Advertising CIRCULAR Slide Rule (OVERPRICED??~Ok,MakeAnOffer!) US $1,000.00
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 KEUFFEL & ESSER COMPANY VINTAGE SLIDE RULE LEATHER CASE ORIGINAL K+E US $59.99
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 Collectible Vintage Slide Rule - Dietzgen - With Case - 1767 P - Made in U.S.A. US $29.99
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 Keuffel and Esser 4081-3 Slide Rule US $34.00
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 Lafayette Slide Rule Decima log 997099 Post war with leather case US $99.00
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 Vintage Frederick POST Slide Rule 1450 VERSATRIG HEMMI Japan with Case Excellent US $50.00
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 Picckett Slide Rule, Model N4-ES Vector Type Log Log in pristine condition US $13.00
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 Vintage 1959 Pickett Slide rule with case US $12.00
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 Bryan Steam Corporation Pocket Slide Rule US $4.99
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 Pre-1940 wood sliderule US $25.00
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 Slide Rules Various US $19.99
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 Antique Slide Rule : Mutual Boiler Safety Valve Size Computer - Double Sided US $.99
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 Vtg 6" Pickett & Eckel Slide Rule Model 600 Log Duplex with Leather Case EXC US $11.99
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 Vintage Post 10 in Student Slide Rule US $4.99
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 VINTAGE 4" BRASS SLIDE RULE--W.GERMANY US $20.00
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 1948 ORTHO PHASE DUPLEX SLIDE RULE NO. 1000 MANUAL HARTUNG PICKET & ECKEL NR US $4.99
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 1900s Thacher K&E Slide rule Engineering calculator CD US $9.99
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 CHARLES BRUNING SLIDE RULE CASE AND GUIDE 1944 US $18.00
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Slide Rules
Cool Retro Mechanical Adder and Slide Rule Calculator
Tips for diving board and swimming pool slide safety
You've installed a pool and now comes the fun part – the diving board and the slide! They certainly can be fun, but you have to practice caution and follow some safety rules.
A lot of people view a diving board as simply an add-on to the pool fun but diving boards are the cause of many a backyard mishap. It should be routine for you to check that your board is secure and in safe operating order. You need to ensure that none of the hardware has become loose and that there are no cracks in the foundation securing the diving board.
As with all swimming pool safety tips, make certain children who use the board and the pool are supervised at all times. Use extreme caution – or avoid the swimming pool altogether, if you're imbibing alcohol.
Here are our top diving board safety tips:
- Use diving boards the way they are intended – one person using it at a time, and making certain the water is deep enough for diving.
- Never dive – or swim – alone.
- Stay out from under the board when someone is on it.
- Know the weight limits of the diving board.
- Make sure when you jump away from the board that you jump far enough away so you don't hit your head.
- Don't run on the board – it can be slippery and you could slip and fall.
- Avoid the diving board – and the pool – if you've been drinking.
- Don't dive from the board if the pool is crowded with swimmers.
Pool slides are also a fun way to accessorize your pool. They do require specific height and space requirements to be used safely. Here are our slide safety tips:
- As with diving – never use the slide alone.
- Make certain the slide has been installed to manufacturer specs.
- Ensure routine maintenance is undertaken to make certain pool is secure.
- Know the weight limits of the pool slide.
- Only one person at a time should be going down the slide.
- To avoid head and neck injury, always go down the slide feet first.
Pools are a great, fun addition to your backyard and as with anything your family undertakes, do it safely and use common sense!
About the Author
Robbi Hess is a writer/editor/blogger with more than 20 years experience. You can read more about her at www.robbihess.com
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