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US Patent: 2,414,794
Safety valve
Patentee: Theodore W. Bergquist (exact or similar names) - Willow Grove, PA USPTO Classifications: 137/476, 137/477 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: Dec. 13, 1944 Granted: Jan. 28, 1947 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for J. E. Lonergan Co.

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