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Patent:US1018510
| Patent: | US 1018510 |
| Title: | Calculating machine |
| Date: | 27.02.1912 |
| Place: | Chicago |
| Country: | USA |
| Person: | Alfred S. McCaskey |
| Company: | McCaskey (P) Electric Calculator Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1018510 (espacenet), US1018510 (uspto) |
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