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US Patent: 180,429
Improvement in insertible saw-teeth
Patentee: Ezra C. Keys (exact or similar names) - Allegheny, PA USPTO Classifications: 125/22, 83/840 Tool Categories: woodworking machines : circular saws : insertable saw teeth woodworking machines : machine and tool cutters : insertable saw teeth Assignees: Hugh Lee - Pittsburgh, PA Daniel Hoffman - Pittsburgh, PA William Keys - Lawrence, KS Manufacturer: Not known to have been produced Witnesses: A. C. Johnston B. L. Johnston	Patent Dates: Applied: Jun. 19, 1876 Granted: Aug. 01, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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