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Patents for A. E. H. Johnson
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
138,932May 13, 1873H.F. ReadImprovement in Wrenchesquick adjust wrenches
203,774May 14, 1878H.F. ReadWrench Attachmentpipe jaw attachments for wrenches
241,881May 24, 1881H.F. ReadWrenchnut wrenches
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