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| All Patents in class 74/127 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,947,334 | Aug. 02, 1960 | R.A. Issartel | Hand brace | hand drills | |
| 2,960,132 | Nov. 15, 1960 | H. Finkeldei | Drilling tool | hand drills | |
| 3,416,582 | Dec. 17, 1968 | D.M. Jenks | Reduction driver | spiral screwdrivers | |
| 3,511,286 | May 12, 1970 | H.C. Brauchla | Hand strip screw driving gun | spiral screwdrivers | |
| 3,789,896 | Feb. 05, 1974 | E. Cooke-Yarborough | Screw drivers and like tools | spiral screwdrivers | |