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US Patent: 171,883
Improvement in box-trimming machines
Patentee: George W. Swan (exact or similar names) - San Francisco, CA USPTO Classifications: 144/121, 144/135 Tool Categories: woodworking machines : specialty woodworking machines : box making machines Assignees: None Manufacturer: Not known to have been produced Witnesses: C. M. Richardson John L. Boone	Patent Dates: Applied: Nov. 28, 1874 Granted: Jan. 04, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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