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Patents for Humphrey Machine Co. | |||||
Number | Date | Patentee | Title | Type | |
98,265 | Dec. 28, 1869 | J. Humphrey | Improvement in boring and mortising-machine | mortising machines | |
111,748 | Feb. 14, 1871 | J. Humphrey | Improvement in pumps | ||
260,202 | Jun. 27, 1882 | J. Humphrey | Turbine Water Wheel | turbine water wheels |