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Computer Mouse Patent Print - Chalkboard Patent Title: X-y Position Indicator For A Display System Inventor Name: Douglas C. Engelbart...read more
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Computer Mouse Patent Print - Chalkboard Patent Title: X-y Position Indicator For A Display System Inventor Name: Douglas C. Engelbart Year Issued: November 17 1970 Item Number: 10219 Reprint of original Patent Patent is printed on premium...