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| Patents for George McKercher | |||||
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| Number | Date | Patentee | Title | Type | |
| 474,300 | May 03, 1892 | G. McKercher | Pipe Wrench | pipe wrenches | |
| 504,232 | Aug. 29, 1893 | G. McKercher | Wrench | self-adjust wrenches | |
| 643,522 | Feb. 13, 1900 | G. McKercher | Improvement in Pipe-Wrenches | quick adjust wrenches | |
| 729,504 | May 26, 1903 | G. McKercher | Wrench | pipe wrenches | |