US PATENT SUBCLASS 422 / 938
.~ Stopcocks; valves [B01L 3/00B6]
Current as of:
June, 1999
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422 /
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CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING
935
DD
FLUID TRANSFERRING GLASSWARE [B01L 3/00B]
{3}
938
.~ Stopcocks; valves [B01L 3/00B6]
