US PATENT SUBCLASS 422 / 933
.~.~ Means for supplying or disposing of tips, e.g., racks or cassettes [B01L 3/02E4]


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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

919  DD  BURETTES; PIPETTES [B01L 3/02] {5}
931  DD  .~ Interchangeable or disposable dispensing tips [B01L 3/02E] {2}
933.~.~ Means for supplying or disposing of tips, e.g., racks or cassettes [B01L 3/02E4]