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Patent:US2684809
| Patent: | US 2684809 |
| Title: | Operation Control Means |
| Date: | 27.07.1954 |
| Place: | |
| Country: | USA |
| Person: | Gang, Herman (P) |
| Company: | Monroe (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2684809 (espacenet), US2684809 (uspto) |
Aus der Patentschrift US2684809
- DATUM: 27.07.1954
- TITEL: Operation control means
- PERSON: MONROC CALCULATING MACHINE COM