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| All Patents in class 173/98 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 265,655 | Oct. 10, 1882 | W.T. Browne | Rotary Hammer | ||
 | 1,598,088 | Aug. 31, 1926 | J. Larocca, J.S. Knowlson | Mechanical movement | |
 | 1,598,090 | Aug. 31, 1926 | J. Larocca | Impacting tool | |
 | 1,598,091 | Aug. 31, 1926 | J. Larocca | Impacting tool | |