Patent:US2060528
Patent: | US 2060528 |
Titel: | Device for Facilitating the Reading of a Slide Rule |
Datum: | 10.11.1936 |
Ort: | |
Land: | USA |
Person: | W. C. Powell |
Firma: | |
Links im Rechnerlexikon: | Rechenschieber |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US2060528 (espacenet), US2060528 (uspto) |
- DATUM: 10.11.1936
- TITEL: Device for facilitating the reading of a slide rule