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All Patents in class 33/672
Patents 1 - 13 of 13
First set of recordsLast set of records
NumberDatePatenteeTitleType
31,257Jan. 29, 1861N.F. NewellCentering Bars of Ironmetal lathe accessories and attachments
49,553Aug. 22, 1865S. Sawyer, E.E. SaffordImproved Adjustable Center-Punchcenter punches
50,442Oct. 17, 1865M. BowkerCenter-Punchcenter punches
316,918Apr. 28, 1885D.W. StandefordCentering Gagecenter marking gauges
335,845Feb. 09, 1886C.A. SingerCentering-toolmetal lathe accessories and attachments
364,082May 31, 1887B.F. BellCenter Marking Devicecenter marking gauges
390,658Oct. 09, 1888C. GageCentering Gagecenter marking gauges
436,526Sep. 16, 1890A.P. HendersonCentering Devicecenter marking gauges
439,975Nov. 04, 1890W.O. NelsonCaliper & Centering Gagemeasurement gauges
548,329Oct. 22, 1895F. SteemmerichKey Seat Rulerule attachments
1,309,654Jul. 15, 1919J.R. ParksCentering Toolcenter marking gauges
3,128,559Apr. 14, 1964R.R. WinterDepth Micrometermicrometers
4,868,995Sep. 26, 1989L.G. LeeApparatus and method for marking center of turning billet
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