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US Patent: 325,096
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Patentees: Herbert J. Leighton (exact or similar names) - Syracuse, Onondaga County, NY John Coffin (exact or similar names) - Johnstown, Cambria County, PA USPTO Classifications: 33/494 Tool Categories: rules : rule graduations Assignees: None Manufacturer: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Witnesses: A. Montgomery J. Frank Condon	Patent Dates: Applied: Apr. 13, 1885 Granted: Aug. 25, 1885 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Brown & Sharpe Mfg. Co.

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