US PATENT SUBCLASS 261 / 21
.~.~ Series

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


261 /   HD   GAS AND LIQUID CONTACT APPARATUS

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

DEFINITION

Classification: 261/21

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