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| Slide rules are a major area of interest for serious collectors of scientific & mathematical calculators. Here is a necessary addition to any collection of slide rules. Here is a major compendium of nearly all slide rule patents issued worldwide: over 1000 PDF files present full, printable images of over 900 patents, searchable on any computer by patent number, date of issue, & inventor's name. In addition, US patents are arranged by patent class. In addition, over 200 of the patents on this CD are of foreign origin. Also included are selected patents on portable nomographic, linear & chart calculators, as well as other calculators relying on opposable logarithmic scale technology. Graphical calculators for trigonometric calculations are also included. Own this valuable guide to slide rule technology today!
Requires Adobe Acrobat Reader (free Version 8 or lower) or free pdf-reader utilities such as Foxit 2.0 & PC-type computer with CD drive.
On Mar-12-07 at 16:07:34 PDT, seller added the following information: March 12 2007: 'Impeccable merchandise, superfast and easy transaction, great vendor! :-)'
On Mar-12-07 at 16:10:23 PDT, seller added the following information: March 12 2007 - 'Item as described. Fast shipping and great communication.'
On Mar-25-07 at 11:35:15 PDT, seller added the following information: March 25 2007: 'Excellent Thank you.'
On Apr-01-07 at 20:37:26 PDT, seller added the following information: On April 1 2007: 'Excellent Dealer, pleasure to deal with!!'
On Apr-08-07 at 10:14:08 PDT, seller added the following information: On Aporil 8 2007: 'Fast delivery, great item.'
On Jul-09-07 at 11:14:46 PDT, seller added the following information:
These discs are currently viewable only on a PC, not a Mac. I am planning to make the necessarty software changes in the near future.
On Jul-11-07 at 08:25:32 PDT, seller added the following information:
This disk is viewable on any computer. |
Shipping and handling Item location: Flemington, NJ, United States Shipping to: Worldwide
 
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