Patent:GB190612370
Brevetto: | GB 190612370 |
Titolo: | Improvements in Calculating Machines |
Data: | 28.02.1907 |
Luogo: | |
Nazione: | Gran Bretagna |
Persona: | Janik, Eduard (P) |
Ditta: | |
Link interni: | |
Keywords: | |
Link al brevetto: (without guarantee) | ![]() |
- DATUM: 28.02.1907
- TITEL: Improvements in Calculating Machines.
- PERSON: JANIK EDUARD AT