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Patent:US1788376
| Patent: | US 1788376 |
| Title: | Ribbon feeding and reversing mechanism for adding machines |
| Date: | 13.01.1931 |
| Place: | |
| Country: | USA |
| Person: | Barrett, Glenn (P) |
| Company: | Portable Adding Machine Compan |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1788376 (espacenet), US1788376 (uspto) |
Aus der Patentschrift US1788376
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- Patent Family: ( Patent:US1734069, Patent:US1784862, Patent:US1788376, Patent:US1811840, Patent:US1812129, Patent:US1812130 )