Patent:GB124245
Patent: | GB 124245 |
Titel: | Improvements in Magnetic Compasses, and in other Surveying and |
Datum: | 21.03.1919 |
Ort: | |
Land: | Großbritannien |
Person: | Fergusson John Coleman |
Firma: | |
Links im Rechnerlexikon: | |
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Link zum Patentamt: (ohne Garantie) | ![]() |
- DATUM: 21.03.1919
- TITEL: Improvements in Magnetic Compasses, and in other Surveying and Levelling Instruments for the Measurement of Angles.
- PERSON: FERGUSSON JOHN COLEMAN