US PATENT SUBCLASS 210 / 484
.~.~ Medium within foraminous supporting container or sheath

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

348  DF  FILTER {25}
483  DF  .~ Supported, shaped or superimposed formed mediums {11}
484.~.~ Medium within foraminous supporting container or sheath

DEFINITION

Classification: 210/484

(under subclass 483) Apparatus in which the filtering medium is retained within a foraminous supporting container or sheath, e.g., removable cartridges.

SEE OR SEARCH THIS CLASS, SUBCLASS:

317, for similar structures with plural spaced filters.