Patent:US1157526
Patent: | US 1157526 |
Titel: | Slide Rule |
Datum: | 19.10.1915 |
Ort: | Niles, Michigan |
Land: | USA |
Person: | Clair. A. Gilson |
Firma: | Gilson Slide Rule Co (P) |
Links im Rechnerlexikon: | Rechenschieber |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US1157526 (espacenet), US1157526 (uspto) |
Henry Alsinger and Ed Chamberlain: "Gilson Slide Rules - Part I - The Small Rules", in Journal of the Oughtred Society Vol. 9, No. 1, Spring 2000