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US Patent: 2,815,040
Pressure relief valve
Patentee:
Ronald V. Smith (exact or similar names) - Pennsauken, NJ

USPTO Classifications:
137/469, 137/533.29, 137/540, 251/360

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

Assignees:
J. E. Lonergan Co. - Philadelphia, PA

Manufacturer:
J. E. Lonergan Co. - Philadelphia, PA

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 13, 1954
Granted: Dec. 03, 1957

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for J. E. Lonergan Co.

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