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Patent:CH216999
| Patent: | CH 216999 |
| Title: | Buchungseinrichtung |
| Date: | 30.09.1941 |
| Place: | München-Solln |
| Country: | Switzerland |
| Person: | Friedrich Beermann |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  CH216999 |
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