Patent:US1969262
Patent: | US 1969262 |
Title: | Calculating Machine |
Date: | 07.08.1934 |
Place: | |
Country: | USA |
Person: | Friden, Carl Mauritz Fredrick (P) |
Company: | Marchant (P) |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | US1969262 (espacenet), US1969262 (uspto) |