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US Patent: 1,856,617
Plate valve
Patentee: William E. Bebbington (exact or similar names) - Painted Post, NY USPTO Classifications: 137/516.19, 137/543.15 Tool Categories: industrial machines : pneumatic : air compressors Assignees: Ingersoll-Rand Co. - Jersey City, NJ Manufacturer: Ingersoll-Rand Co. - Jersey City, NJ Witnesses: Unknown	Patent Dates: Applied: Jul. 06, 1929 Granted: May 03, 1932 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Ingersoll-Rand Co.
Description: Improvements to the valve of patent 1,470,625 make the valve easier to assemble correctly, ensuring even pressure on the valve plate.

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