US PATENT SUBCLASS 429 / 205
.~.~.~ Sulphate containing

Current as of: June, 1999
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429 /   HD   CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS

122  DF  CURRENT PRODUCING CELL, ELEMENTS, SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS {16}
188  DF  .~ Include electrolyte chemically specified and method {11}
204  DF  .~.~ Sulphuric acid {1}
205.~.~.~ Sulphate containing

DEFINITION

Classification: 429/205

(under subclass 204) Subject matter containing a salt of sulphuric acid.