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Patents for J. N. Macdonald & Co.
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
965,722Jul. 26, 1910J.N. MacdonaldChain Repairing Implementchain
1,041,826Oct. 22, 1912J.N. MacdonaldChain Repair Toolchain
RE13,957Aug. 03, 1915J.N. MacdonaldChain Repairing Implementpliers
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