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Patents for Charles H. Riches
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
CA-32,673Nov. 02, 1889E. Gurney, C. Levey, C.W. PenistonJointwater heaters
418,011Dec. 24, 1889E. Gurney, C. Levey, C.W. PenistonRadiatorsteam heating
CA-34,491Jun. 09, 1890T. NortheyAutomatic low water indicatorstationary boilers
CA-35,992Feb. 16, 1891E. Gurney, C. Levey, C.W. PenistonRadiatorradiators
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