Patent:US2872621
Patent: | US 2872621 |
Titel: | Adding and subtracting drive circuit for counting tubes |
Datum: | 03.02.1959 |
Ort: | |
Land: | USA |
Person: | Adams, John (P) |
Firma: | Sylvania Electric Prod |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US2872621 (espacenet), US2872621 (uspto) |
- DATUM: 03.02.1959
- TITEL: Adding and subtracting drive circuit for counting tubes
- PERSON: SYLVANIA ELECTRIC PROD