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US Patent: 359,379
Work Holder for Lathes
Patentee: George F. Ballou (exact or similar names) - Waltham, Middlesex County, MA USPTO Classifications: 269/239, 269/307, 269/60, 269/71, 409/240, 82/132, 82/137 Tool Categories: metalworking machines : metal lathes : metal lathe accessories and attachments Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 09, 1886 Granted: Mar. 15, 1887 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Ballou & Whitcomb

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