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Patents for Gates Iron Works
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
201,646Mar. 26, 1878C.M. BrownImprovement in ore crushers and grinders
525,443Sep. 04, 1894P.W. Gates, E.E. Hanna, C.L. CarmanGyrating crusher
606,543Jun. 28, 1898E.E. HannaSelf-lubricating engine
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