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All Patents in class 408/112
Patents 1 - 15 of 15
First set of recordsLast set of records
NumberDatePatenteeTitleType
36,903Nov. 11, 1862W.S. HadleyTapping Guidetool holders
94,870Sep. 14, 1869W.A. ClarkImproved Washer-Cutterwasher cutters
100,772Mar. 15, 1870D. KellyCentererdrill bits
143,738Oct. 14, 1873H.E. WhippleWasher-Cutterswasher cutters
393,817Dec. 04, 1888W.H. ClappPortable multi-drill mortising machine
568,932Oct. 06, 1896S.W. WilcoxBit-centering device
614,848Nov. 29, 1898T.J. DoranHand-operated drilldrill presses
1,831,813Nov. 17, 1931A. LevedahlCentering guidehandheld power tool accessories
2,242,510May 20, 1941S.A. CogsdillAdjustable countersink structuremetalworking countersinks
2,308,055Jan. 12, 1943S.A. CogsdillAdjustable countersink structuremetalworking countersinks
2,765,009Oct. 02, 1956O.D. DoernerLathe and drill press assemblywood lathes
2,768,663Oct. 30, 1956P.C. JonesLathe and drill press assemblywood lathes
3,460,408Aug. 12, 1969J.G. RaymondDepth gaugehandheld drills
3,890,058Jun. 17, 1975E.L. Self, J.C. GormleyDrill guiding apparatusdrilling and boring
5,076,742Dec. 31, 1991L.G. Lee, F.A. McLean, G.W. Lacoste, T.C. Frank, L. Sevack, D.D. BradetteHinge drilling jig
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