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US Patent: 973,059
Barrel-sanding machine
Patentees: Henry F. Marten (exact or similar names) - San Francisco, CA Henry Grahn (exact or similar names) - San Francisco, CA USPTO Classifications: 147/1, 451/304, 451/310 Tool Categories: woodworking machines : sanding machines : belt sanders trade specific : cooper Assignees: None Manufacturer: Not known to have been produced Witnesses: F. R. Webb A. J. Bone	Patent Dates: Applied: Mar. 11, 1910 Granted: Oct. 18, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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