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| Patents for G. W. Gregory | |||||
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| Number | Date | Patentee | Title | Type | |
| 324,759 | Aug. 18, 1885 | S. Elliott | Drilling-machine | drill presses | |
| 328,966 | Oct. 27, 1885 | L.G. McKnight, H.C. Knowlton | Boring-machine | chair maker | |
| 341,149 | May 04, 1886 | H.C. Knowlton | Cutter-head | cutterheads | |
| 374,142 | Nov. 29, 1887 | A. Craig | Mode of Finishing Wheel Blanks | watchmaker | |
| 380,735 | Apr. 10, 1888 | W.L. Tobey | Wrench | quick adjust wrenches | |