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| All Patents in class 33/32.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 147,008 | Feb. 03, 1874 | H.K. Jones | Improvement in Machines for Marking Carpenters' Squares | tool making machines | |
| 495,565 | Apr. 18, 1893 | P.A. Renko | Surface Gage | surface gauges | |
| 1,255,507 | Feb. 05, 1918 | F.H. Brennan | Centering Device | center marking gauges | |
| 2,353,901 | Jul. 18, 1944 | L.J. Jires | Wrench | ratchet wrenches | |
| 4,194,543 | Mar. 25, 1980 | L.M. Cotton | Grooving Indexer for Routing Apparatus | handheld power tool accessories | |