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Patent:US2954924


Patent:US 2954924
Title:Calculating Machines
Date:04.10.1960
Place:
Country:USA
Person:Leich et al
Company:Brunsviga (P)
Internal Links:ten-key machine - copending Patent:US2879938, improvement of german patent Patent:US907836
Keywords:
Link to the patent office:
(without guarantee)
 US2954924 (espacenet),  US2954924 (uspto)


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