Patent:GB248620
Brevetto: | GB 248620 |
Titolo: | Improvements in or relating to calculating devices |
Data: | 11.03.1926 |
Luogo: | |
Nazione: | Gran Bretagna |
Persona: | Francesco Poggi und Umberto Emanuele |
Ditta: | |
Link interni: | Hyperbeltafel, Nichtintegrierendes Planimeter |
Keywords: | |
Link al brevetto: (without guarantee) | ![]() |
- DATUM: 11.03.1926
- TITEL: Improvements in or relating to calculating devices
- PERSON: FRANCESCO POGGI