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| All Patents in class 74/503 | |||||
| Number | Date | Patentee | Title | Type | |
| 15,467 | Aug. 05, 1856 | T.R. Bailey | Hub mortiser | mortising machines | |
| 365,755 | Jun. 28, 1887 | S.E. Moore | Clothes Pin | ||
| 1,231,076 | Jun. 26, 1917 | J.J. Sexton, R.E. Klages | Automobile-headlight control | ||
| 2,487,011 | Nov. 01, 1949 | G.C. Wilhide | Switch assembly for portable electric tools | handheld power drills | |
| 2,587,099 | Feb. 26, 1952 | E.M. Boat, J.J. Bishop | Resilient Head for Dial Bore Gauges | ||
| 2,834,221 | May 13, 1958 | C.O. Lassy | Vise lock | metalworking machine vises | |