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All Patents in class 408/202
Patents 16 - 30 of 47
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NumberDatePatenteeTitleType
260,997Jul. 11, 1882S. KuhlmanAuger Depth Stopdrill depth stops
294,985Mar. 11, 1884J. Fuller, Sr.Gage Attachment for Boring-Bits, &c.drill depth stops
310,527Jan. 06, 1885H.E. KoepkaWasher-Cutterwasher cutters
326,342Sep. 15, 1885J.C. SmithAdjustable Concentric Channeleradjustable drill bits
333,418Dec. 29, 1885E.F. LindseyCounterboring Attachment for Bitscountersinks
385,543Jul. 03, 1888A. BurrittTap with Detachable Cutterstaps and dies
390,936Oct. 09, 1888J.E. WindleBit-gagedrill depth stops
413,178Oct. 22, 1889E.E. DoeCombined Scratch and Bit Gagemarking gauges
417,486Dec. 17, 1889J.N. IsabelBit attachment
455,199Jun. 30, 1891J.A. GoebDrill Depth Stopdrill depth stops
521,997Jun. 26, 1894C. Whitus, J.W. Wilks, N. WhitusBrace and bit gage
525,810Sep. 11, 1894A.H. FlemingWatchmaker's Tool
532,472Jan. 15, 1895S.B. MinnichCountersink-toolcountersinks
548,385Oct. 22, 1895F.W. NelsonAuger Bit with Detachable Tipauger bits
554,443Feb. 11, 1896J.H. HenryCountersinking-Bitcountersinks
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