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All Patents in class 477/19
Patents 1 - 6 of 6
First set of recordsLast set of records
1,563,546Dec. 01, 1925C. BouillonElectric Motor Driven Change Speed Devicespeed 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 Mechanismmachine mechanisms
2,554,721May 29, 1951G.J. Kasselmann, H.J. SiekmannDial Indicating Mechanismmachine mechanisms
3,150,537Sep. 29, 1964O. HermannMethod and Apparatus for Automatically Shifting Gearsmachine mechanisms
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