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| Patents Granted on 1942-12-01 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,303,530 | Dec. 01, 1942 | A. Eisele | Gauge | measurement gauges | |
| 2,303,639 | Dec. 01, 1942 | R.D. Wortendyke, C. Herfurth | Grinding Machine | grinding machines | |
| 2,303,858 | Dec. 01, 1942 | O.A. Ostberg | Measuring Instrument | measurement gauges | |
| 2,304,035 | Dec. 01, 1942 | O. Steiner | Camera Shutter and Light Synchronizer | camera flash lighting apparatus | |