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Patents Granted on 1921-05-03
Patents 1 - 15 of 16
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NumberDatePatenteeTitleType
RE15,098May 03, 1921A. CashBlock-levelercobbler
D57,768May 03, 1921A. ChadwickWrenchwrenches
D57,775May 03, 1921D.F. GrahamSocket Wrenchsocket wrenches
1,376,438May 03, 1921W.B. HutherInserted-tooth cutter-head and method of making the samecutterheads
1,376,507May 03, 1921P.L. BillingsleyAutomobile jackautomobile mechanic
1,376,583May 03, 1921H.G. RiceBottle Capperbottle cappers
1,376,651May 03, 1921E. SmithDrawknifedraw knives
1,376,687May 03, 1921A.F. FroussardElevator Locking Deviceelevators and lifts
1,376,708May 03, 1921F.J. LapointeBroaching-machinebroaches
1,376,709May 03, 1921F.J. LapointeSpline-finishing broachbroaches
1,376,721May 03, 1921C.F. MuellerScrew Wrenchscrew adjust wrenches
1,376,765May 03, 1921L.S. HarveyBall-and-socket fastener
1,376,861May 03, 1921F.M. DavisUniversal duplex milling-machinemilling machines
1,376,986May 03, 1921B.F. WinterhoffSocket for wind instrumentsmusic instrument maker
1,377,068May 03, 1921J. HartnessProcess of Inspecting and Gaging Screw Threads
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