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US Patent: 3,042,068
Safety relief valve
Patentee:
Ronald V. Smith (exact or similar names) - Pennsauken, NJ

USPTO Classifications:
137/315.05, 251/363, 285/4, 411/427

Tool Categories:
industrial tools : pressure regulators

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

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

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 23, 1959
Granted: Jul. 03, 1962

Patent Pictures:
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Vintage Machinery entry for J. E. Lonergan Co.
Description:
This invention "has particular appilcation to valves for use on hydro-carbon chemical plants and similar installations where 'coking' and/or corrosive fluids are handled."

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