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Patents for William Joseph Grinden
Patents 1 - 5 of 5
Number	Date	Patentee	Title	Type
577,653	Feb. 23, 1897	G. Amborn, Jr., W.J. Grinden	Chain Wrench	chain and strap wrenches
577,654	Feb. 23, 1897	G. Amborn, Jr., W.J. Grinden	Chain Wrench	chain and strap wrenches
CA-55,988	May 19, 1897	W.J. Grinden, G. Amborn	Chain Wrench	chain and strap wrenches
CA-55,989	May 19, 1897	W.J. Grinden, G. Amborn	Chain Wrench	chain and strap wrenches
GB-190,323,811	Jan. 14, 1904	W.J. Grinden	Improvements in Chain Pipe Vises	pipe and chain vises

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