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US Patent: 3,222,720
Heater indicating means for extrusion system
Patentees: Sheldon Saslawsky (exact or similar names) - Bridgeport, CT Richard P. Hyland (exact or similar names) - East Walpole, MA USPTO Classifications: 219/506, 340/593, 425/143, 425/169, 425/326.1 Tool Categories: specialty machines : blow molding machines Assignees: Producto Machine Co. - Bridgeport, CT Manufacturer: Producto Machine Co. - Bridgeport, CT Witnesses: Unknown	Patent Dates: Applied: Mar. 16, 1962 Granted: Dec. 14, 1965 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Producto Machine Co.

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