Patent:US2115870
Patent: | US 2115870 |
Title: | Combined typewriting and computing machine |
Date: | 03.05.1938 |
Place: | Westfield, NJ und New York |
Country: | USA |
Person: | Pitman, Henry L. (P) |
Company: | Underwood Elliott-Fisher (P) Comp. |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() ![]() |
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