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Patent:GB393828
| Patent: | GB 393828 |
| Title: | Improvements in range and direction calculating apparatus for artillery |
| Date: | 15.06.1933 |
| Place: | |
| Country: | Great Britain |
| Person: | Petschenig, Karl (P) |
| Company: | Optische Anstalt C. P. Goerz (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB393828 |
Aus der Patentschrift GB393828
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