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Patent:CA112003
| Patent: | CA 112003 |
| Title: | Calculating machine |
| Date: | 19.05.1908 |
| Place: | |
| Country: | Canada |
| Person: | Hopkins, Hubert (P) |
| Company: | Moon-Hopkins (P) Billing Machine Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  CA112003 |
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