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Patent:US2192599
| Patent: | US 2192599 |
| Title: | Multiplying machine |
| Date: | 05.03.1940 |
| Place: | New York |
| Country: | USA |
| Person: | William Lang |
| Company: | IBM (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2192599 (espacenet), US2192599 (uspto) |
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