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US Patent: 10,499
Bit or drill stock
Patentee: Dexter H. Chamberlain (exact or similar names) - Boston, MA USPTO Classifications: 81/36 Tool Categories: woodworking tools : braces : brace chucks Assignees: None Manufacturer: Not known to have been produced Witnesses: R. H. Early F. P. Hale, Jr.	Patent Dates: Granted: Feb. 07, 1854 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Kirk Eppler

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