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All Patents in class 409/284
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
275,393Apr. 10, 1883L.J. KnowlesMachine for Forming Key-Seats in Hubs of Gears, &c.metalworking machines
1,434,711Nov. 07, 1922F.J. LapointeManually-operated broaching machinebroaching machines
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