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Patent:CH280879
| Patent: | CH 280879 |
| Title: | Machine à calculer. |
| Date: | 15.02.1952 |
| Place: | USA |
| Country: | Switzerland |
| Person: | |
| Company: | IBM (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  CH280879 |
Aus der Patentschrift CH280879
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- Patent Family: ( Patent:BE476875, Patent:CH280879, Patent:DE951047, Patent:FR1016917, Patent:GB656139, Patent:NL82609C, Patent:NL94873C, Patent:US2587979, Patent:US2624508 )