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Patent:US2434487
| Patent: | US 2434487 |
| Title: | Record controlled adding and comparing machine |
| Date: | 13.01.1948 |
| Place: | |
| Country: | USA |
| Person: | Dickinson Arthur H |
| Company: | IBM (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US2434487 (espacenet), US2434487 (uspto) |
Aus der Patentschrift US2434487
- DATUM: 13.01.1948
- TITEL: Record controlled adding and comparing machine