Patent:US1432169
Patent: | US 1432169 |
Titel: | Duplicating device for adding machines |
Datum: | 17.10.1922 |
Ort: | |
Land: | USA |
Person: | Fenn William, Groshell Oscar |
Firma: | Manufacturers Contracting Comp |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US1432169 (espacenet), US1432169 (uspto) |
- DATUM: 17.10.1922
- TITEL: Duplicating device for adding machines
- PERSON: MANUFACTURERS CONTRACTING COMP