US PATENT SUBCLASS 422 / 936
.~ Tubes; conduits [B01L 3/00B2]

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}
936.~ Tubes; conduits [B01L 3/00B2]