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| All Patents in class 464/25 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,293,786 | Aug. 25, 1942 | E.C. Worden | Wrench | torque wrenches | |
| 2,293,787 | Aug. 25, 1942 | E.C. Worden | Torque Wrench | torque wrenches | |
| 3,214,940 | Nov. 02, 1965 | L. Kramer | Pneumatic impact wrench | ||
| 3,214,941 | Nov. 02, 1965 | R.E. Shulters | Pneumatic impact wrench | ||
| 3,263,449 | Aug. 02, 1966 | L. Kramer | Pneumatic impact wrench | ||
| 3,717,011 | Feb. 20, 1973 | V.J. Vana | Pneumatic impact wrench | ||