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Patent:DE666902
| Patent: | DE 666902 |
| Title: | Zählwerksantrieb für Addiermaschinen |
| Date: | 02.11.1938 |
| Place: | Sömmerda und Düsseldorf |
| Country: | Germany |
| Person: | Kottmann, August (P) |
| Company: | Rheinmetall (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  DE666902 |
Aus der Patentschrift DE666902