US PATENT SUBCLASS 422 / 89
.~.~.~ Gas chromatography

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

50  DF  ANALYZER, STRUCTURED INDICATOR, OR MANIPULATIVE LABORATORY DEVICE {11}
83  DF  .~ Means for analyzing gas sample {6}
88  DF  .~.~ Including means for adsorbing or absorbing gas into or onto liquid or solid media {4}
89.~.~.~ Gas chromatography

DEFINITION

Classification: 422/89

Gas chromatography:

(under subclass 88) Apparatus wherein the analytical device is a gas chromatos:graphic system.

SEE OR SEARCH CLASS

73, Measuring and Testing,

23.35, for gas chromatos:graphic apparatus not involving chemical reaction.

96, Gas Separation: Apparatus,

101+, for chromatography type apparatus for gas separation.