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Patents for H. F. Cushman
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
741,854Oct. 20, 1903F.N. Trevor, W.W. TrevorMachine for Removing Bark from Logsdebarking machines
899,356Sep. 22, 1908W.W. TrevorMachine for Shaping Oar Bladesspecialty machines
939,760Nov. 09, 1909F.N. TrevorSawing Machinecircular ripsaws
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