US PATENT SUBCLASS 604 / 406
.~ Filter or series thereof for liquid entering or leaving container

Current as of: June, 1999
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604 /   HD   SURGERY

403  DF  CONTAINER FOR BLOOD OR BODY TREATING MATERIAL, OR MEANS USED THEREWITH (E.G., NEEDLE FOR PIERCING CONTAINER CLOSURE, ETC.) {8}
406.~ Filter or series thereof for liquid entering or leaving container

DEFINITION

Classification: 604/406

Filter or series thereof for liquid entering or leaving

container:

(under subclass 403) Subject matter including a filter or a series of filters for separating impurities for liquid coming into or dispensed from the receptacle.