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| Patents for George P. Griffith | |||||
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| Number | Date | Patentee | Title | Type | |
| 106,160 | Aug. 09, 1870 | W.E. Hill | Improvement in machine for turning logs | sawmill log handling | |
| 148,771 | Mar. 17, 1874 | E.H. Stearns | Improvement in saw-mill dogs | sawmill dogs | |
| 210,850 | Dec. 17, 1878 | L.H. Hall | Imprrovement in hoisting-machines | hoists, winches, come-alongs | |
| 213,002 | Mar. 04, 1879 | E.H. Stearns | Improvement in saw-mill dogs | sawmill dogs | |
| RE9,095 | Feb. 24, 1880 | L.H. Hall | Hoisting-machine | hoists, winches, come-alongs | |