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Patents for H. Frost Cushman
Patents 1 - 5 of 5
First set of recordsLast set of records
517,990Apr. 10, 1894F.N. Trevor, W.W. TrevorMachine for Barking Logsdebarking machines
687,413Nov. 26, 1901F.N. Trevor, W.W. TrevorSteam Boilerstationary boilers
696,119Mar. 25, 1902F.N. Trevor, W.W. TrevorSawing Machinecircular ripsaws
764,873Jul. 12, 1904F.N. Trevor, W.W. TrevorSawing Machinecircular ripsaws
883,922Apr. 07, 1908F.N. TrevorSawing Machinecircular ripsaws
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