Official Gazette of the United States Patent Office: Patents

Official Gazette of the United States Patent Office: Patents
United States. Patent Office

~-i3,816,237 OPTICALLY INACTIVE MAGNETO-OPTIC SUBSTRATE Edward Martin Barrall, San Jose, and Kenneth Lee, Saratoga, both of Calif., assignors to International Business Machines Corporation, Armonk, N.Y. ~ Filed Feb. 26, 1973  ...

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