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Patents for Frank A. Howard
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
57,325Aug. 21, 1866F.A. HowardImprovement in mitering-machinesmiter machines
80,583Aug. 04, 1868I. AllardImprovement in screw-driversspiral screwdrivers
81,373Aug. 25, 1868F.A. HowardImprovement in machine for miteringmiter machines
157,087Nov. 24, 1874I. AllardImprovement in screw-driversscrewdrivers
470,001Mar. 01, 1892F.A. HowardScrew-driverspiral screwdrivers
470,055Mar. 01, 1892J.W. JonesScrew-driverspiral screwdrivers
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