US PATENT SUBCLASS 210 / 911
.~ Cumulative poison

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

902  DF  MATERIALS REMOVED {7}
911.~ Cumulative poison {1}
912  DF  .~.~> Heavy metal {2}

DEFINITION

Classification: 210/911

Cumulative poison:

Collection of disclosures under collection 902 in which the material removal is one that tends to accumulate in the body

and becomes toxic upon repeated or continuous exposure or ingestion.