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US Patent: 129,731
Improvement in Saw Frames
Patentee: William Hawley (exact or similar names) - Hawley, PA USPTO Classifications: 30/506 Tool Categories: woodworking tools : handsaws : frame saws Assignees: None Manufacturer: Henry Disston & Sons - Philadelphia, PA Witnesses: William H. Hankin, Jr. Z. H. Smith	Patent Dates: Granted: Jul. 23, 1872 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen. "Vintage Machinery" entry for Henry Disston & Sons
Description: Concave slotted shoulder and oblique cross bar. Appears to be listed as Brace Frame No. 70 in the 1876 Disston Price List although the oblique is opposite in the catalog picture.

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