US PATENT SUBCLASS 165 / DIG 62
.~.~.~ Having particular external casing support means


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

Internet Version by PATENTEC © 1999      Terms of Use



165 /   HD   HEAT EXCHANGE

DIG 51  DD  HAVING EXPANSION AND CONTRACTION RELIEVING OR ABSORBING MEANS {2}
DIG 52  DD  .~ For cylindrical heat exchanger {6}
DIG 60  DD  .~.~ Expandable casing for cylindrical heat exchanger {2}
DIG 62.~.~.~ Having particular external casing support means