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All Patents in class 477/19
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,563,546Dec. 01, 1925C. BouillonElectric Motor Driven Change Speed Deviceindustrial machine speed changing mechanisms
1,611,042Dec. 14, 1926H.L. Johnston, M.K. AkersVariable-speed mechanism
2,486,254Oct. 25, 1949J.C. Zivny, T.S. BriskinControl mechanism for electrically driven toolshandheld drills
2,545,053Mar. 13, 1951G.J. Kasselmann, H.J. SiekmannLathe Transmission and Control Mechanismmetalworking machine mechanisms
2,554,721May 29, 1951G.J. Kasselmann, H.J. SiekmannDial Indicating Mechanismmetalworking machine mechanisms
3,150,537Sep. 29, 1964O. HermannMethod and Apparatus for Automatically Shifting Gearsmetalworking machine mechanisms
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