US PATENT SUBCLASS 210 / 347
.~.~.~ Central header

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

322  DF  PLURAL DISTINCT SEPARATORS {1}
323.1  DF  .~ Filters {10}
346  DF  .~.~ Spaced wall-type filters {1}
347.~.~.~ Central header

DEFINITION

Classification: 210/347

(under subclass 346) Apparatus in which there is a header extending centrally of the group of spaced wall type filter elements.