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US Patent: 1,138,278
Pressure-controlled valve
Patentees: William G. Rogers (exact or similar names) - Painted Post, NY John H. Castle (exact or similar names) - Painted Post, NY USPTO Classifications: 137/471 Tool Categories: industrial tools : pressure regulators industrial machines : pneumatic : air compressors : compressor relief valves Assignees: Ingersoll-Rand Co. - Jersey City, NJ Manufacturer: Ingersoll-Rand Co. - Jersey City, NJ Witnesses: E. O. Bonham A. O. Carpenter	Patent Dates: Applied: Sep. 25, 1913 Granted: May 04, 1915 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Ingersoll-Rand Co.

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