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Patents for John Humphrey
Patents 1 - 7 of 7
First set of recordsLast set of records
2,834Oct. 26, 1842J. HumphreyMachine for cutting veneers and other thin pieces of wood from the circumference of a logveneer machines
16,923Mar. 31, 1857J. HumphreyMachine for cutting slots in clothes-pinsclothespin machines
18,268Sep. 22, 1857J. HumphreyLathe for the manufacture of clothes pins, &c.wood lathes
22,430Dec. 28, 1858J. HumphreyTool for slotting clothes-pinsclothespin machines
98,265Dec. 28, 1869J. HumphreyImprovement in boring and mortising-machinemortising machines
111,748Feb. 14, 1871J. HumphreyImprovement in pumps
260,202Jun. 27, 1882J. HumphreyTurbine Water Wheelturbine water wheels
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