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Patents for F. H. McNaught
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-141,815Jul. 23, 1912M.W. DownieCombination track gauge and recorder
1,066,188Jul. 01, 1913M.W. DownieCombination track gauge and recorder
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