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Patent:GB544724
| Patent: | GB 544724 |
| Title: | Improvements in or relating to devices for indicating in connection with the progress of moving bodies |
| Date: | 24.04.1942 |
| Place: | Norwich, Norfolk |
| Country: | Great Britain |
| Person: | Russell Pearce Gould |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  GB544724 |
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