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| Patents Granted on 1933-01-31 | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-329,840 | Jan. 31, 1933 | E.A. Hall | Cylinder Reamer | cylinder maintenance | |
| 1,895,710 | Jan. 31, 1933 | W. Ernst, H.F. MacMillin | Hydraulic Press | hydraulic presses | |
| 1,895,807 | Jan. 31, 1933 | J.E. Lovely | Internal Driving Fixture | jigs and fixtures | |