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US Patent: 3,330,652
High Speed Steel
Patentee: Norman E. Robinson (exact or similar names) - Clayville, Providence County, RI USPTO Classifications: 420/107, 420/90, 420/93 Tool Categories: Assignees: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Manufacturer: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Witnesses: Unknown	Patent Dates: Applied: Apr. 17, 1964 Granted: Jul. 11, 1967 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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