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All Patents of Type: gear measuring machines
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,732,730Oct. 22, 1929R.W. PorterMethod and Apparatus for Measuring and Comparing Gears and the Likegear measuring machines
1,812,369Jun. 30, 1931R.O. Beardsley, R.W. PorterProjecting Mechanism and Gear Staging Devicegear measuring machines
2,171,589Sep. 05, 1939E.W. MillerInvolute Measuring Machinegear measuring machines
2,348,712May 16, 1944C.G. DahlerupGear Testing Machinegear measuring machines
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