(under subclass 272) Apparatus treating the exhaust gases by absorbing or adsorbing one of the liquid or gaseous components; or by separating a liquid or solid component by a filter, a centrifugal device, or a gravitational device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
299+, for apparatus in which exhaust gas is passed into or through a catalytic bed that may also filter the gas or sorb one of its components.
SEE OR SEARCH CLASS
55, Gas Separation, appropriate subclass, for a gas separator of general utility.
96, Gas Separation: Apparatus, for gas separation apparatus, per se.
