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Patent:US1088175
| Patent: | US 1088175 |
| Title: | Slide Rule |
| Date: | 24.02.1914 |
| Place: | |
| Country: | USA |
| Person: | W. O. Philips |
| Company: | |
| Internal Links: | Rechenschieber |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US1088175 (espacenet), US1088175 (uspto) |
Aus der Patentschrift US1088175