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Patents for Sol Einstein | |||||
Number | Date | Patentee | Title | Type | |
1,997,338 | Apr. 09, 1935 | S. Einstein, L.F. Nenninger | Milling Machine | milling machines | |
2,327,022 | Aug. 17, 1943 | S. Einstein, H. Ernst, A.H. Dall | Surface Finishing Machinery | grinding machines |