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| All Patents in class 173/29 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,539,068 | May 26, 1925 | B.W. Brockett | Motor hand tool | |
| 1,539,069 | May 26, 1925 | B.W. Brockett | Handle for motor hand tools | ||
 | 1,699,870 | Jan. 22, 1929 | S.D. Black, A.G. Decker | Portable tool | |
 | 3,734,515 | May 22, 1973 | E.C. Dudek | Pneumatic impact wrench | |
| 6,199,642 | Mar. 13, 2001 | D.A. Nowak, J.M. Beer, T.P. Becker | Reversible Ratchet Power Tool with Synchronized Motor and Ratchet Control | ||