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| All Patents in class 173/93.5 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,174,314 | Sep. 26, 1939 | J. De Mooy | Rotary Impact Tool | pneumatic tools | |
| 2,184,394 | Dec. 26, 1939 | W. Moretti | Power driven screw gun with clutch | handheld power tools | |
| 2,711,662 | Jun. 28, 1955 | E.H. Shaff | Power Operated Rotary Impact Wrench | ||
| 6,227,308 | May 08, 2001 | P.W. Griffin, A.P. Ghode, R.D. DeRome | Reversible Impact Mechanism with Structure Limiting Hammer Travel | ||