US PATENT SUBCLASS 261 / 22
.~.~.~ Gas connections

Current as of: June, 1999
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261 /   HD   GAS AND LIQUID CONTACT APPARATUS

19  DF  FLUID DISTRIBUTION {5}
20  DF  .~ Systems {2}
21  DF  .~.~ Series {1}
22.~.~.~ Gas connections

DEFINITION

Classification: 261/22

With connections permitting gases only to pass successively from one contact apparatus to another.