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US Patent: 229,855
Lathe-chuck for turning polygonal bodies
Patentee: Siegfried Block (exact or similar names) - Boston, MA USPTO Classifications: 142/52 Tool Categories: woodworking machines : wood lathes : wood lathe chucks Assignees: None Manufacturer: Not known to have been produced Witnesses: Paul Goepel Ernst W. F. Natter	Patent Dates: Applied: Apr. 20, 1880 Granted: Jul. 13, 1880 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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