Patent:US2449228
Patent: | US 2449228 |
Titel: | Coupling means for use with calculating, bookkeeping, or like machines |
Datum: | 14.09.1948 |
Ort: | |
Land: | USA |
Person: | Hofgaard, Rolf (P) |
Firma: | |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US2449228 (espacenet), US2449228 (uspto) |
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- Patent Family: ( Patent:BE469265, Patent:CH293168, Patent:DE815558, Patent:FR935760, Patent:GB630559, Patent:US2449228 )