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Patent:CH256270
| Patent: | CH 256270 |
| Title: | Umrechnungsgerät für Grade, Neugrade und Prozentsteigung |
| Date: | 15.08.1948 |
| Place: | Effretikon |
| Country: | Switzerland |
| Person: | Fahrni, Karl (P) |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  CH256270 |
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