Patent:US1508267
Patent: | US 1508267 |
Titel: | Overdraft key-locking and indicating mechanism for calculating machines |
Datum: | 09.09.1924 |
Ort: | |
Land: | USA |
Person: | Bernau, Frederick (P) |
Firma: | Ellis (P) Adding Typewriter Compan |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US1508267 (espacenet), US1508267 (uspto) |
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- Patent Family: ( Patent:US1508267, Patent:US1731701, Patent:US1819067, Patent:US1819068, Patent:US1875913 )