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) | ![]() ![]() |
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