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Patent:DE473242
| Patent: | DE 473242 |
| Title: | Rechentabelle |
| Date: | 12.03.1929 |
| Place: | |
| Country: | Germany |
| Person: | Bergmann, Jean (P) |
| Company: | |
| Internal Links: | Multipliziertafel |
| Keywords: | |
| Link to the patent office: (without guarantee) |  DE473242 |
Aus der Patentschrift DE473242
- DATUM: 12.03.1929
- TITEL: Rechentabelle
- PERSON: JEAN BERGMANN