Patent:US2663093
Patent: | US 2663093 |
Titel: | Multiplying calculator, including a slidable slate |
Datum: | 22.12.1953 |
Ort: | |
Land: | USA |
Person: | Charles Lipkin |
Firma: | |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US2663093 (espacenet), US2663093 (uspto) |
- DATUM: 22.12.1953
- TITEL: Multiplying calculator, including a slidable slate