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Patent:US1819066
| Patent: | US 1819066 |
| Title: | Overdraft numeral key locking mechanism |
| Date: | 18.08.1931 |
| Place: | Hillside, NJ und Newark, NJ |
| Country: | USA |
| Person: | Bernau, Frederick (P) |
| Company: | Ellis (P) Adding Typewriter Comp. |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1819066 (espacenet), US1819066 (uspto) |
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