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US Patent: 170,520
Improvement in circular-saw guides
Patentees: John Bryce (exact or similar names) - Grand Haven, MI Otto Gronberg (exact or similar names) - Grand Haven, MI USPTO Classifications: 83/828 Tool Categories: woodworking machines : circular saws : tablesaw accessories Assignees: None Manufacturer: Not known to have been produced Witnesses: James C. Avery George A. Brown	Patent Dates: Applied: Oct. 30, 1875 Granted: Nov. 30, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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