(under the class definition) Apparatus having means which acts on the gas flow subsequent to separation to (1) vary the quantity of such gas flow or (2) spread out, render less turbulent, or disperse such gas flowing out of the apparatus.
(1) Note. Patents are placed in this and indented subclasses rather than in subclass 418 and indented subclasses when the direction of flow is indeterminable or is of no moment.
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418+, for means upstream of the separating media to control the flow of gas thereto.
