2002.51.1

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Calculator Patents
15-Feb-54
3 in HIGH x 8 in WIDE
(7.62 cm HIGH x 20.32 cm WIDE)
Gift of Mr. Robert T. Avery
2002.51.1

Harold Tolman Avery (lower front cover)





Two bound volumes of patent documents filed by Harold Tolman Avery, employee of the Marchant Calculating Machine Company. Volumes were presented on the occasion of Avery's 25th anniversary of employment with the company, February 15, 1954. a= Volume 1: May 1933-June 1942 b= Volume 2: September 1942-January 1954
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