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US Patent: 1,951,926
Relief Valve
Patentee:
Kenneth S. M. Davidson (exact or similar names) - Newton Highlands, Middlesex County, MA

USPTO Classifications:
137/71, 220/89.2, 361/521

Tool Categories:
industrial tools : industrial valves

Assignees:
Crosby Steam Gage & Valve Co. - Boston, Suffolk County, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 13, 1929
Granted: Mar. 20, 1934

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Crosby Steam Gage & Valve Co.

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