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All Patents in class 192/70.3
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
808,975Jan. 02, 1906H.G. DittbennerFriction-clutchmetalworking power transmission
834,857Oct. 30, 1906T.H. WorrallClutchmetalworking power transmission
835,373Nov. 06, 1906H.R. StacksFriction-clutchindustrial machine clutches
890,810Jun. 16, 1908H.R. StacksFriction-clutchindustrial machine clutches
924,397Jun. 08, 1909H.R. StacksFriction-clutchindustrial machine clutches
1,878,149Sep. 20, 1932H.L. JohnstonMixing machine
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