Dating pickett slide rules Dating Faber-castell Slide Rules

Dating pickett slide rules, pickett n4-es

I unknowingly purchased a model which, although now joined with ten more in recent years, I still feel is hard to beat.

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A wonderful treasure, the big version of the NES. They seem to share the same copyright date but this version has only 64 pages and less information than the leter edition. Models dissapear; model numbers above 20 introduced. Dieterich as an errand boy.

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Pocket Duplex Rule, with full aerial photographic and conventional scales, very seldom seen in a dating pickett slide rules rule format. She used this one while in high school and during her first few years at college. Go to the Pocket Slide Rules. Shown as a boxed set with maroon leather case, gold embossed with Cleveland Institute of Electronics and Pickett logo. British Thornton AD Advanced: In the s and it was overper year. Name changes to Pickett Industries.

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January, - The Model P23 7-inch slide rule, a new style of slide rule for student use, is introduced, using plastic as a material for the first time. Its time to give them to you, so here they are". The first three from left to right are simplex rules, they only have scales on the front face and the cursor design s reflects this.

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With proper care and use you may expect years of accurate service and satisfaction. Thus, ' HF ' indicates a slide rule made in June One knob rotates the dial on the log side with respect to a small fixed needle seen just below lefthand knob aligned with '1'.

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As a result of a study made of materials, bamboo indigenous to Asia, was selected as the material, resulting in the granting of patents for a bamboo slide rule not only in Japan, but in England and France inand in the US, China, and Canada in Catalogs are an excellent indication of when a model was produced or discontinued. Phil was a lifelong member of Purdue's Phi Delt and was a significant donor and loyal supporter of their annual fund and educational foundation for many years.

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Special Standard Oil scale design, copyright Rule is unused and still in sealed dating pickett slide rules plastic. This is usually a combination of alpha and numeric codes which defines the rule's factory of manufacture, year of manufacture and batch number.

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Good, some cover marks. Pickett was an American manufacturer of slide rules characterized by all metal construction. B A Simm Copyright Date: If anyone has any additional info on this please let me know.

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Nice things people have said about us in print and on TV, see the original articles. I need a dating website is a very sophisticated rule, made in the trademark aluminum body format by Pickett, complete with a gold embossed black leather case. Type III Slide rule artwork reflects new location. Detail of the Sun Hemmi P Look at catalog's in the museum library and visit Clark McCoy's: All in all, not much is really different between these two specimens - all the scales are the same, and even the cases are identical.

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Willard of the State College of Pennsylvania addressed the solution of problems in plane trigonometry. Improvements are made in both quality and production levels.

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He becomes their Midwest sales rep.