US PATENT SUBCLASS 204 / 420
.~.~.~.~.~ Glass ion-selective membrane


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}
416  DF  .~.~.~ Ion-sensitive electrode {3}
419  DF  .~.~.~.~ Inorganic membrane {1}
420.~.~.~.~.~ Glass ion-selective membrane


DEFINITION

Classification: 204/420

Glass ion-selective membrane:

(under subclass 419) Apparatus in which the inorganic ion-selective membrane is glass.