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US Patent: 472,517
Worm and Worm Shaft
Patentee: Oscar J. Beale (exact or similar names) - Providence, Providence County, RI USPTO Classifications: 74/440 Tool Categories: Assignees: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Manufacturer: Not known to have been produced Witnesses: W. H. Thurston S. J. Murphy	Patent Dates: Applied: Jul. 22, 1891 Granted: Apr. 12, 1892 Patent Pictures: 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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