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US Patent: 2,770,172
Coolant Return System
Patentee: Benjamin P. Graves (exact or similar names) - Cranston, Providence County, RI USPTO Classifications: 193/25C, 29/DIG.101, 409/136, 409/137 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. 30, 1953 Granted: Nov. 13, 1956 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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