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United States Patent

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United States Patent 3,013,628
Issue Date: December 19, 1961

Current U.S. Class: 422/173 ; 422/181; 55/337; 55/459.1; 55/466; 60/297
Current International Class: B04C 5/00 (20060101); F23G 7/06 (20060101); F23J 15/02 (20060101)



For U.S. patent law, rules, and procedures see MPEP.

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