US PATENT SUBCLASS 204 / 421
.~.~.~ Solid electrolyte

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

193  DF  APPARATUS {5}
194  DF  .~ Electrolytic {11}
400  DF  .~.~ Analysis and testing {20}
421.~.~.~ Solid electrolyte {2}
422  DF  .~.~.~.~> Liquid sample sensor {1}
424  DF  .~.~.~.~> Gas sample sensor {3}

DEFINITION

Classification: 204/421

Solid electrolyte:

(under subclass 400) Apparatus which incorporates a solid electrolyte.