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| Patents for Clark Bros. | |||||
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| Number | Date | Patentee | Title | Type | |
| 261,832 | Aug. 01, 1882 | W.P. Clark | Pipe Vise | pipe and chain vises | |
| 289,853 | Dec. 11, 1883 | G.M. Pelton | Saw-mill dog | sawmill dogs | |
| 351,165 | Oct. 19, 1886 | C.E. Clark | Feed mechanism for saw-mill carriages | sawmill feed works | |
| 374,752 | Dec. 13, 1887 | G.M. Pelton | Valve-gear | steam engine valve gear | |