US PATENT SUBCLASS 165 / DIG 67
.~.~ Cylindrical heat exchanger rectilinearly slidable relative to its support


Current as of: June, 1999
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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 67.~.~ Cylindrical heat exchanger rectilinearly slidable relative to its support {1}
DIG 68  DD  .~.~.~> Including fluid seal