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All Patents in class 408/16
Patents 1 - 15 of 41
First set of recordsNext set of recordsLast set of records
88,821Apr. 13, 1869M. SweetImprovement in boring-machineswood drilling and boring
111,248Jan. 24, 1871S.W. Putnam, Jr.Improvement in machines for cutting screw-threads on boltsmetal threading machines
157,034Nov. 17, 1874W.D. SquiresMachines for Enlarging the Bore of Gun-Barrelshorizontal boring mills
289,170Nov. 27, 1883M. SweetWood-boring machinewood drilling and boring
300,038Jun. 10, 1884A.B. BeanIndex-gage for drilling-machinesdrill presses
341,378May 04, 1886W.E. GwyerSpirit Level for Boring Bitslevels
352,721Nov. 16, 1886J.A. TrautStanley No 44 Bit and Square Levellevels
354,073Dec. 07, 1886J. SwanBoring-machineportable timber borers
371,294Oct. 11, 1887G. WoodsPlumb Level for Boring Bitslevels
423,110Mar. 11, 1890W.C. Aycock, J.A. AycockBlind-stile-boring machinewindowblind machines
741,087Oct. 13, 1903C.B. WeidlogIndicator for Boring Machinesmeasuring tools
766,723Aug. 02, 1904C.C. NewtonDrilling and Tapping MAchinetapping machines
1,088,965Mar. 03, 1914E.P. Bullard, Jr.Adjustable observation-stopmetalworking machine mechanisms
1,217,572Feb. 27, 1917C.C. CraleyMetal Working Apparatusdrill press accessories
1,323,267Dec. 02, 1919B.M. HansonPrecision Boring Machine
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