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All Patents in class 285/342 | |||||
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Number | Date | Patentee | Title | Type | |
5,357 | Nov. 06, 1847 | C.W. Noyes, T.W. Allen | Piston-Rod Packing | piston ring and packing | |
487,829 | Dec. 13, 1892 | W.R. England | Pipe-Coupling | auxiliary wrenches |