(under subclass 749) Process in which the addition of the chemical causes the evolution of a constituent as a gas or in which the process includes a step of stripping a dissolved gas from the liquid.
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603, for a treatment by a living organism with collection or storage of a gas.
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95, Gas Separation: Processes, for processes of gas separation. See particularly
241+, for degasification of a liquid. See section III, C, of the Class 210 class definition for an amplification of the
