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| All Patents in class 81/464 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,734,515 | May 22, 1973 | E.C. Dudek | Pneumatic impact wrench | ||
| 4,512,222 | Apr. 23, 1985 | S.L. Christophersen | Loosening Tool for Tie Rod Sleeves | ||
| 7,089,833 | Aug. 15, 2006 | G.R. Hamann, J.E. Hamann | Air Actuated Pneumatic Impact Wrench Lug Bolt Tool | pneumatic tools | |