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Patent:GB497833
| Patent: | GB 497833 |
| Title: | Calculating Machine |
| Date: | 26.03.1937 |
| Place: | Chemnitz, Deutschland |
| Country: | Great Britain |
| Person: | Baron, Harold (P) |
| Company: | Astra (P) |
| Internal Links: | |
| Keywords: | Vierspeziesmaschine Druckwerk |
| Link to the patent office: (without guarantee) |  GB497833 |
Aus der Patentschrift GB497833