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All Patents in class 81/102 | |||||
Number | Date | Patentee | Title | Type | |
1,389,581 | Sep. 06, 1921 | C.A. Dies | Wrench | pipe wrenches | |
1,762,324 | Jun. 10, 1930 | W.A. Bernard | Wrench | pipe wrenches | |
1,838,659 | Dec. 29, 1931 | F.J. Clemens | Pipe Wrench | pipe wrenches |