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Patent:CA319671
| Patent: | CA 319671 |
| Title: | Calculating machine |
| Date: | 09.02.1932 |
| Place: | |
| Country: | Canada |
| Person: | Friden, Carl Mauritz Fredrick (P) |
| Company: | Marchant (P) Calculating Machine Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  CA319671 |
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