Patent:FR1591603
Patent: | FR 1591603 |
Title: | Règle à calcul |
Date: | 12.06.1970 |
Place: | Paris |
Country: | France |
Person: | |
Company: | Pierre Marie Raymond Faucheux |
Internal Links: | |
Keywords: | |
Link to the patent office: (without guarantee) | ![]() |
Techenschieber logarithmisch, mit 2 Zungen