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Patent:US1204929
| Patent: | US 1204929 |
| Title: | Printing Machine for Code Communication |
| Date: | 14.11.1916 |
| Place: | |
| Country: | USA |
| Person: | H. M. Ball, Sr. |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1204929 (espacenet), US1204929 (uspto) |
Aus der Patentschrift US1204929