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Service Provider Description
This site is developed and maintained by John Walker, founder of Autodesk, Inc. and co-author of AutoCAD. A variety of documents, images, software for various machines, and interactive Web resources are available here; click on entries in the frame to the left to display a table of contents for that topic. Items which span more than one category are listed in all.

A comprehensive (and large) list of all items on the site is available as a frame- and graphics-free Site Map.

Except for a few clearly-marked exceptions, all the material on this site is in the public domain and may be used in any manner without permission, restriction, attribution, or compensation. Back links to this site are welcome.

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