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Patent:US2081836
| Patent: | US 2081836 |
| Title: | Calculating machine |
| Date: | 25.05.1937 |
| Place: | Detroit |
| Country: | USA |
| Person: | Racz, Ernest (P) |
| Company: | Burroughs (P) Adding Machine Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2081836 (espacenet), US2081836 (uspto) |
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