(under the class definition) Apparatus having means other than mere casing or enclosing structure for sustaining the separating apparatus against gravity, such means being adapted to rest upon the ground or other supporting surface and not including a flow line.
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356+, for other features involving support means.
490+, for combinations involving supporting means for separating media within or at the extremity of a flow line.
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15, Brushing, Scrubbing, and General Cleaning,
301+, for installed vacuum cleaners and see the class definition of Class 55 for a statement of the line.