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| All Patents in class 173/162.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 802,449 | Oct. 24, 1905 | S.W. Goodhue | Cushion Tool Holder for Pneumatic Hammers | tool holders | |
| 1,362,657 | Dec. 21, 1920 | W.S. Whyte | Tool Holder | tool holders | |
| 2,090,842 | Aug. 24, 1937 | M. Kiecksee | Ramming machine driven by internal combustion | handheld power hammers | |