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Patent:US2694524
| Patent: | US 2694524 |
| Title: | Tens-carry mechanism for calculating machines |
| Date: | 16.11.1954 |
| Place: | Richmond, CA |
| Country: | USA |
| Person: | Eugene E. Reynolds |
| Company: | Marchant (P) Calculators, Inc. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2694524 (espacenet), US2694524 (uspto) |
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