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US Patent: 2,152,837
Prefill valve for hydraulic presses
Patentee: Earl Cannon (exact or similar names) - Rockville Centre, NY USPTO Classifications: 137/114, 137/505, 91/208, 91/441, 91/519 Tool Categories: metalworking machines : metalworking presses : hydraulic metalworking presses Assignees: E. W. Bliss Co. - Brooklyn, NY Manufacturer: E. W. Bliss Co. - Brooklyn, NY Witnesses: Unknown	Patent Dates: Applied: Apr. 09, 1937 Granted: Apr. 04, 1939 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for E. W. Bliss Co.
Description: Improvements to patent 2,127,324.

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