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All Patents in class 74/841
Patents 1 - 15 of 60
First set of recordsNext set of recordsLast set of records
1,305Aug. 29, 1839E. HallMetal drilldrilling and boring
2,961Feb. 20, 1843R.H. SpringsteedMetal Drilldrill presses
3,897Jan. 31, 1845A.A. WilderMachine for drilling and mortising wood or metaldrilling and boring
5,116May 18, 1847A. MorganMetal Drillhorizontal drilling machines
8,554Dec. 02, 1851W. BushnellHand-drilldrill presses
13,383Aug. 07, 1855J. Conner, T. NewbyMachine-drilldrill presses
13,845Nov. 27, 1855J.P. HeacockDrilling and Screw-Cutting Machinedrill presses
16,900Mar. 24, 1857G.C. TaftFeeding Drill-Shaftshorizontal drilling machines
17,944Aug. 04, 1857G.C. TaftSelf-feeding drillhorizontal drilling machines
43,372Jun. 28, 1864G.C. TaftImprovement in drillshorizontal drilling machines
58,568Oct. 09, 1866R. AllisonImprovement in boring-machinesdrilling and boring
80,475Jul. 28, 1868J. GoodinImprovement in boring and drilling-machinesdrilling and boring
99,803Feb. 15, 1870E.J. WorcesterImproved drilling-machinedrill presses
108,310Oct. 11, 1870J. WheelockImprovement in boring apparatusboring bars
113,815Apr. 18, 1871G.C. TaftImprovement in drilling-machineshorizontal drilling machines
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