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US Patent: 277,141
Buck Saw
Patentee: Edward A. Learned (exact or similar names) - San Francisco, CA USPTO Classifications: 30/506, 30/507 Tool Categories: Assignees: Henry S. Durden - San Francisco, CA Herman L. Welch - San Francisco, CA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 18, 1882 Granted: May 08, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Saw blade has notches on back top and bottom that are engaged with two hooked "latches" to secure it into the frame and allow replacement.

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