US PATENT SUBCLASS 422 / 97
.~.~.~.~.~ With specific coating on bridge element

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}
94  DF  .~.~ Combustible gas detector {1}
95  DF  .~.~.~ With thermoelectric detector {1}
96  DF  .~.~.~.~ Wheatstone bridge {1}
97.~.~.~.~.~ With specific coating on bridge element

DEFINITION

Classification: 422/97

With specific coating on bridge element:

(under subclass 96) Apparatus having a named material coating, usually a catalyst, on a bridge element.