Patent:US1160742
Patent: | US 1160742 |
Titel: | Cleaning and Transfer Mechanism for Calculating Machines |
Datum: | 13.04.1912 |
Ort: | St. Louis, USA |
Land: | USA |
Person: | Meier, Albert J. (P); Swift, William L. (P); Reller, Edwin L. (P) |
Firma: | Duco (P) |
Links im Rechnerlexikon: | Duco |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US1160742 (espacenet), US1160742 (uspto) |