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Patent:US2000218
| Patent: | US 2000218 |
| Title: | Tabulating machine |
| Date: | 07.05.1935 |
| Place: | Yonkers, NY und New York |
| Country: | USA |
| Person: | Carroll, Fred M. (P) |
| Company: | IBM (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2000218 (espacenet), US2000218 (uspto) |
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