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All Patents in class 74/74
Patents 1 - 15 of 15
First set of recordsLast set of records
NumberDatePatenteeTitleType
319,430Jun. 02, 1885C. Snedekumbrace or drill with alternating rotation
900,144Oct. 06, 1908J.W. Havens, D. BarnesCombination Toolbreast drills
930,472Aug. 10, 1909F.I. HardingValve Grindervalve grinding tools
942,222Dec. 07, 1909I.C. SmithValve Grindervalve grinding tools
1,015,902Jan. 30, 1912N.E. MeredithValve Grindervalve grinding tools
1,017,242Feb. 13, 1912A.B. BrowneCombined Breast Drill and Valve Grindercombination tools
1,102,581Jul. 07, 1914O.D. HapgoodValve Grindervalve grinding tools
1,161,070Nov. 23, 1915H.M. NeerValve Grindervalve grinding tools
1,282,018Oct. 22, 1918F.O. AlbertsonValve Grindervalve grinding tools
1,326,190Dec. 30, 1919A.D. GoodwinOperating Means For Valve Grinding Toolsvalve grinding tools
1,353,902Sep. 28, 1920C.W. HerbergerDriving Mechanism For Grinding Toolsvalve grinding tools
1,421,486Jul. 04, 1922E.R. JonesOperating Device For Valve Grindersvalve grinding tools
1,441,032Jan. 02, 1923J.W. SchabValve Grindervalve grinding tools
1,483,721Feb. 12, 1924D.F. DunhamValve grinderhandheld power tool accessories
1,707,572Apr. 02, 1929L.G. RollerValve Grindervalve grinding tools
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