Patent:US3604621
Patent: | US 3604621 |
Title: | Improved Slide Rule Arrangement |
Date: | 14.09.1971 |
Place: | |
Country: | USA |
Person: | Walter S. Drummond |
Company: | |
Internal Links: | Rechenschieber |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() ![]() |
- DATUM: 14.09.1971
- TITEL: IMPROVED SLIDE RULE ARRANGEMENT
- PERSON: WALTER S DRUMMOND JR
- Patent Family: ( Patent:JP49007520B, Patent:US3604621 )