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US Patent: 1,947,892
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Patentees: Edward H. Hall (exact or similar names) - Chicago, IL Harry C. H. Walsh (exact or similar names) - Chicago, IL USPTO Classifications: 192/17R, 192/25 Tool Categories: metalworking machines : metalworking presses : punch presses Assignees: None Manufacturer: Walsh Press & Die Co. - Chicago, IL Witnesses: Unknown	Patent Dates: Applied: Dec. 26, 1931 Granted: Feb. 20, 1934 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Walsh Press & Die Co.
Description: Improvements to patent 1,928,711.

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