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| Patents Granted on 1947-12-23 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,433,007 | Dec. 23, 1947 | C.S. Weyandt | Internal-combustion percussion tool | gas and gasoline engines | |
| 2,433,127 | Dec. 23, 1947 | R.B. Kinzbach | Machine Tool Holder | metalworking machine tool holders | |