Patents for Humphrey Machine Co.


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Patents for Humphrey Machine Co.
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	98,265	Dec. 28, 1869	J. Humphrey	Improvement in boring and mortising-machine
	111,748	Feb. 14, 1871	J. Humphrey	Improvement in pumps
	260,202	Jun. 27, 1882	J. Humphrey	Turbine Water Wheel