Shapiro; Nelson H.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5137700 Processes employing iodine-iodide etching solutionsExpiredApr 24, 89Aug 11, 92[C22B, C01B, C01G]
4737911 Process for electronically maintaining financial records, especially for checkbook balancing and rectificationExpiredJun 07, 85Apr 12, 88[G06F]

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