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Patents for Isaac Allard
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
58,933Oct. 16, 1866I. AllardWood-sawing machinedrag saws
80,583Aug. 04, 1868I. AllardImprovement in screw-driversspiral screwdrivers
157,087Nov. 24, 1874I. AllardImprovement in screw-drivers
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