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All Patents of Type: crank pin lathes
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,372,075Mar. 22, 1921L.J. KirchenbauerCrank Pin Lathecrank pin lathes
RE17,040Jul. 17, 1928L.J. KirchenbauerCrank Pin Lathecrank pin lathes
1,934,530Nov. 07, 1933W.F. GroeneMachine Toolcrank pin lathes
2,148,349Feb. 21, 1939H.J. Siekmann, W.F. GroeneOrbital Lathe Feed Mechanismmetalworking machine mechanisms
2,264,458Dec. 02, 1941H.J. SiekmannVertical Crank Pin Lathecrank pin lathes
2,291,035Jul. 28, 1942W.L. GroeneMultiple Spindle Indexing Crank Pin Lathecrank pin lathes
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