Student Materials
Product Design and Development by Karl T. Ulrich and Steven D.
Eppinger.
McGraw Hill - New York.
1995.
An Introduction to U.S. Patents Searching by Susan B. Ardis.
Libraries Unlimited, Inc., P.O. 3988, Englewood, CO 86155-3988.
ISNB 0-87287-856-2.
1991.
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