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US Patent: 724,514
Machine Tool
Patentee: William Sellers (exact or similar names) - Philadelphia, PA USPTO Classifications: 409/339 Tool Categories: metalworking machines : drilling and boring : vertical boring mills Assignees: William Sellers & Co. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 16, 1902 Granted: Apr. 07, 1903 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for William Sellers & Co.

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