Patent:US3159341
Patent: | US 3159341 |
Titel: | Extended Square Root Mech for a Square Root Calc Mach |
Datum: | 01.12.1964 |
Ort: | |
Land: | USA |
Person: | Ellerbeck, Grant Clawson (P) |
Firma: | Friden (P) |
Links im Rechnerlexikon: | Quadratwurzel |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US3159341 (espacenet), US3159341 (uspto) |
improvement of Patent:US2736494 with twelve instead of ten digits w/o redesigning or changing timing of existing machine