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US Patent: 85,792
Improvement in steam safety-valves
Patentee:
Gilbert H. Clemens - New York, NY

USPTO Classifications:
137/383, 137/468, 137/532, 137/557, 137/558, 236/92R, 251/11, 251/338

Tool Categories:
propulsion and energy : steam apparatus : steam safety valves

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George W. Burkhart
Melville Clemens

Patent Dates:
Granted: Jan. 12, 1869

Patent Pictures:
USPTO pdf tiff
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