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US Patent: 191,311
Device for Punching Sheet-Metal for Pipe-Elbows
Patentee: Greene Choate (exact or similar names) - East Saginaw, Saginaw County, MI USPTO Classifications: 83/33, 83/468.94, 83/589, 83/598, 83/620, 83/633, 83/669 Tool Categories: metalworking machines : metal punching machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 30, 1877 Granted: May 29, 1877 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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