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US Patent: 4,990
Improvement in Chisels
Patentees: Reuben Fairchild (exact or similar names) - Trumbull, CT Starr Fairchild (exact or similar names) - Trumbull, CT USPTO Classifications: 30/167.1, 5/44.1 Tool Categories: Assignees: Starr Fairchild - Trumbull, CT Manufacturer: Not known to have been produced Witnesses: John C. Beardsler Hezekiah S. Nichols	Patent Dates: Granted: Feb. 27, 1847 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Uses a spring on the back of a chisel or between two chisels to aid in clearing chips.

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