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Patent:US1933349
| Patent: | US 1933349 |
| Title: | Automatic control system for tabulators |
| Date: | 31.10.1933 |
| Place: | Brooklyn, NY und New York |
| Country: | USA |
| Person: | Arthur F. Smith |
| Company: | IBM (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1933349 (espacenet), US1933349 (uspto) |
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