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Patents Granted on 1923-12-11
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,476,862Dec. 11, 1923W. Strube, H. WagnerValvevalves
1,477,052Dec. 11, 1923J.D. GibbsFriction gearingdrill presses
1,477,337Dec. 11, 1923G.O. Leopold, T.J. FegleySpiral toolspiral screwdrivers
1,477,374Dec. 11, 1923O.S. MarshallDividing Headindexers and dividers
1,477,480Dec. 11, 1923W.F. GroeneCombined power and hand operated feed mechanismmetal lathes
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