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All Patents in class 74/341
Patents 16 - 29 of 29
First set of recordsPrevious set of recordsLast set of records
NumberDatePatenteeTitleType
840,669Jan. 08, 1907L. ThielVariable Speed Mechanismmetalworking speed changing mechanisms
840,670Jan. 08, 1907L. ThielVariable Speed Mechanismmetalworking variable speed mechanisms
840,671Jan. 08, 1907L. ThielVariable Speed Mechanismmetalworking variable speed mechanisms
855,068May 28, 1907J. ParkerGearingmilling machines
918,773Apr. 20, 1909H.W. SchatzVariable Speed Mechanism
955,488Apr. 19, 1910F. WelkerVariable-speed gearingwoodworking machine mechanisms
1,019,798Mar. 12, 1912T. Trecker, E.J. KearneySpeed-changing gearingmilling machines
1,170,097Feb. 01, 1916J. ParkerSpeed changing and reversing mechanismmetalworking machine mechanisms
1,231,880Jul. 03, 1917N.W. Hagen, L. ThielGearingindustrial machine gearing
1,334,242Mar. 16, 1920F. HardingeGear mechanismmetal lathes
1,754,267Apr. 15, 1930A.M. DellingerGear mechanismgrinding mills
2,167,748Aug. 01, 1939S.C. GebertVariable Speed Gear Transmissionindustrial machine gearing
2,344,039Mar. 14, 1944F.W. HackMultiversal Machine Tool and Boring Head Thereforvertical boring mills
3,058,365Oct. 16, 1962W.R. GerchowSpeed change device
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