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| All Patents in class 116/67R | |||||
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| Number | Date | Patentee | Title | Type | |
| 157,562 | Dec. 08, 1874 | J.C. Goodrich, J.E. Windle | Improvement in Bit-Gages | drill depth stops | |
| 711,398 | Oct. 14, 1902 | B.M. Hanson | Fluid Operated Stop Valve and Alarm | valves | |
| 995,178 | Jun. 13, 1911 | W. Potter | Boring-Machine alarm | drill depth stops | |
| 1,374,345 | Apr. 12, 1921 | H.H. Wolfe | Tension means for floor-surfacing machines | sanding machines | |
| 2,338,763 | Jan. 11, 1944 | E.A. Hall, R.S. Beverlin | Portable Grinding Machine | valve grinding tools | |