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Patents for Willis J. Perkins
Patents 31 - 34 of 34
First set of recordsPrevious set of recordsLast set of records
NumberDatePatenteeTitleType
463,234Nov. 17, 1891W.J. PerkinsShingle-sawing machineshingle machines
537,850Apr. 23, 1895W.J. PerkinsMachine for trimming wood, &c.miter machines
543,818Jul. 30, 1895H.A. WeeksGas Engineinternal combustion engines
643,002Feb. 06, 1900C.H. Blomstrom, W.J. PerkinsElectric Igniter for Explosive Enginesignition systems
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