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Pagina principale
Patent:GB191508613
| Brevetto: | GB GB191508613 |
| Titolo: | Improvements in and relating to Calculating Machines |
| Data: | 23.02.1916 |
| Luogo: | London, Großbritannien |
| Nazione: | Gran Bretagna |
| Persona: | Marks, Edward Charles Robert (P) |
| Ditta: | Addometer (P) |
| Link interni: | |
| Keywords: | Additionsmaschine, adder |
| Link al brevetto: (without guarantee) |  GBGB191508613 |
Aus der Patentschrift GB191508613
- DATUM: 03.02.1916
- TITEL: Improvements in and relating to Calculating Machines.
- PERSON: ADDOMETER CORP US