Patent:DE30421
Patent: | DE 30421 |
Title: | Rechenmaschine |
Date: | 19.08.1884 |
Place: | Povoa de Lanhoso |
Country: | Germany |
Person: | [[D\'Azevedo Coutinho, Antonio Julio Rodriguez]] |
Company: | |
Internal Links: | |
Keywords: | Azevedo, Acevedo |
Link to the patent office: (without guarantee) | ![]() |

s. auch Patent:GB188410781