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US Patent: 881,848
Water Relief Valve
Patentee:
George W. Day - Gasport, Niagara County, NY

USPTO Classifications:
137/495, 137/509

Tool Categories:
water distribution systems : water valves

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 08, 1907
Granted: Mar. 10, 1908

Patent Pictures:
USPTO pdf tiff
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