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| Patents Granted on 1930-12-02 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,783,250 | Dec. 02, 1930 | R.E. Manley | Lever mechanism | screw presses | |
| 1,783,260 | Dec. 02, 1930 | R.W. Reed | Clapboard Gage | clapboard markers | |
| 1,783,330 | Dec. 02, 1930 | W.W. Edwards | Saw guide | bandsaw guides | |
| 1,783,541 | Dec. 02, 1930 | F. Neumann, W.J. Hogg | Tool Holder | drilling and boring tool holders | |
| 1,783,713 | Dec. 02, 1930 | H.V. Holman | Adjustable clamp | bar and pipe clamps | |
| 1,783,884 | Dec. 02, 1930 | C.C. Lee | Valve-seat liner | valve and seat maintenance | |