US PATENT SUBCLASS 165 / 182
.~.~ With means spacing fins on structure

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

177  DF  TUBULAR STRUCTURE {4}
181  DF  .~ With discrete heat transfer means {2}
182.~.~ With means spacing fins on structure

DEFINITION

Classification: 165/182

(under subclass 181) Apparatus having spaced heat transmitting plate sections spaced along the hollow body and distinct structure between the plate sections holding them in position relative to each other.