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US Patent: 193,746
Improvement in machines for making and sapping shingle-bolts
Patentees: George W. Albright (exact or similar names) - Stanton, MI Spencer D. Albright (exact or similar names) - Stanton, MI USPTO Classifications: 83/708 Tool Categories: woodworking machines : specialty woodworking machines : shingle machines Assignees: None Manufacturer: Not known to have been produced Witnesses: James R. Harrison J. Eugene Merris	Patent Dates: Applied: Jan. 15, 1877 Granted: Jul. 31, 1877 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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