US PATENT SUBCLASS 422 / 937
.~ Joints; seals [B01L 3/00B4]

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

935  DD  FLUID TRANSFERRING GLASSWARE [B01L 3/00B] {3}
937.~ Joints; seals [B01L 3/00B4]