Association of Professional Model Makers

Industrial Design Society of America

Society of Manufacturing Engineers

McFarlin Reference Center - Weights and Measures

Ready Reference: Numbers/Science

Lewisville, Texas, where Prototech is located

My Virtual Reference Desk - Table of Contents

RES-Links: Introduction/Definitions/Hints

Note: Prototech went out of business in 2001 after 18 years of service.
This page and related, linked pages, are for historical and reference purposes only.
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