Patent:US137107
Patent: | US 137107 |
Title: | adding machine |
Date: | 25.03.1873 |
Place: | |
Country: | USA |
Person: | Stephenson, Archibald (P), Manteno, Ill. |
Company: | |
Internal Links: | Stephenson Adder, Kolonnenaddierer, Scheibenaddierer |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() ![]() |
