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Patent:FR554321
| Patent: | FR 554321 |
| Title: | Perfectionnements aux machines à calculer enregistreuses |
| Date: | 28.02.1923 |
| Place: | USA |
| Country: | France |
| Person: | |
| Company: | Dalton (P) Adding Machine Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  FR554321 |
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