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B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
B05C7/02—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work the liquid or other fluent material being projected