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Patents for MacDonald and Sons, Ltd.
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-136,213Oct. 17, 1911W.A. HylePipe Wrenches and the Likepipe wrenches
1,026,040May 14, 1912W.A. HylePipe Wrenchpipe wrenches
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