US PATENT SUBCLASS 604 / 404
.~ Means for indicating condition of container content

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}
404.~ Means for indicating condition of container content

DEFINITION

Classification: 604/404

Means for indicating condition of container content:

(under subclass 403) Subject matter wherein means are provided for recording volume or use or an undesirable condition affecting the contents of the container.