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Patents for E. M. Allen
Patents 1 - 11 of 11
First set of recordsLast set of records
NumberDatePatenteeTitleType
810,634Jan. 23, 1906H.L. FlatherChange Speed Gearing for Lathesmetalworking speed changing mechanisms
868,074Oct. 15, 1907E.E. ClarkShaft Liner and Levelerspecial purpose gauges
886,721May 05, 1908L.G. McKnightMachine for Making Chair Seatschair making machines
962,690Jun. 28, 1910H. AllenDriving mechanism for drill-spindlesdrill presses
963,895Jul. 12, 1910H.L. HoughtonRatchet-Toolratchet wrenches
1,010,574Dec. 05, 1911L.W. Rawson, W.W. BirdRaising and lowering mechanismdrill presses
1,011,183Dec. 12, 1911A.J. GiffordFeed-lever connection for drillsdrilling and boring
1,018,222Feb. 20, 1912A.W. WhitcombTail-stock-clamping mechanismmetal lathes
1,056,243Mar. 18, 1913A.W. WhitcombDouble-acting clutchmetalworking power transmission
1,075,280Oct. 07, 1913H. AllenGearingdrill presses
1,121,599Dec. 22, 1914H. AllenBelt driving mechanismdrill presses
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