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All Patents in class 409/231
Patents 1 - 10 of 50
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PictureNumberDatePatenteeTitle
110,407Dec. 20, 1870C. Van HaagenImprovement in grooving-tools
  633,108Sep. 12, 1899W.B. PearsonMachine for Turning Regular Hexagons
  642,712Feb. 06, 1900J. ParkerHigh Speed Attachment for Milling Machines
729,896Jun. 02, 1903V. RoyleCutter-head for routing-machines
1,013,847Jan. 02, 1912D.B. SalstromSpindle-bearing
1,188,339Jun. 20, 1916J.B. SindersonMilling-machine
1,300,163Apr. 08, 1919W.F. GroeneMeans for attaching tools to spindles
  1,492,545Apr. 29, 1924S. EinsteinCone Drive Miller Having Box Type Over-Arm
  1,688,534Oct. 23, 1928S. EinsteinVaiable Speed Spindle Drive
  1,729,286Sep. 24, 1929J.B. ElfringAdjustable Spacing Collar for Milling Cutters
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