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Patent:US1104844
| Patent: | US 1104844 |
| Title: | Navigators Apparatus |
| Date: | 28.07.1914 |
| Place: | |
| Country: | USA |
| Person: | I. G. Sundell |
| Company: | |
| Internal Links: | Analogrechner, Astronomie, Navigation |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1104844 (espacenet), US1104844 (uspto) |
Aus der Patentschrift US1104844