Who's inventing what? : patents granted in the United States as reported in the Official Gazette of the United States Patent and Trademark Office : patents from January through March 1990 /

Who's inventing what? : patents granted in the United States as reported in the Official Gazette of the United States Patent and Trademark Office : patents from January through March 1990 / Ellen Pare, editorial coordinator - Detroit, Mich. : Gale Research Co., 1990 - x, 864 p. : ill. ; 28 cm.

issue 1


Patents--United States

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