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Patent:US2781968
| Patent: | US 2781968 |
| Titel: | Addition and subtraction operating device for electric calculating machines operating in the binary system |
| Datum: | 19.02.1957 |
| Ort: | |
| Land: | USA |
| Person: | Charles Chenus Pierre Jacques |
| Firma: | Bull Sa Machines |
| Links im Rechnerlexikon: | |
| Schlagworte: | |
| Link zum Patentamt: (ohne Garantie) |  US2781968 (espacenet), US2781968 (uspto) |
Aus der Patentschrift US2781968
- DATUM: 19.02.1957
- TITEL: Addition and subtraction operating device for electric calculating machines operating in the binary system
- PERSON: BULL SA MACHINES
- Patent Family: ( Patent:DE879618, Patent:FR62455E, Patent:FR1035312, Patent:GB717869, Patent:US2781968 )