Patent:US2153089
Patent: | US 2153089 |
Titel: | Means for Mounting an Adding and Subtracting Device on Slide Rules |
Datum: | 04.04.1939 |
Ort: | |
Land: | USA |
Person: | Kübler, Carl |
Firma: | Addiator (P) |
Links im Rechnerlexikon: | Rechenschieber, Zahlenschieber, Castell-Addiator |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | ![]() ![]() |
- DATUM: 04.04.1939
- TITEL: Means for mounting an adding and subtracting device on slide rules