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Patent:CA379913
| Patent: | CA 379913 |
| Title: | Multiplying machine checking device |
| Date: | 07.03.1939 |
| Place: | |
| Country: | Canada |
| Person: | Bryce, James (P) |
| Company: | IBM (P) International Business Machines Corp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  CA379913 |
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