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All Patents in class 192/52.1
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
893,684Jul. 21, 1908A.W. WhitcombPower Transmitting Devicefriction clutches
1,210,257Dec. 26, 1916B.F. AugustineClutchclutches
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