US PATENT SUBCLASS 126 / 675
.~.~.~.~ Corrugated surface

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

569  DF  SOLAR HEAT COLLECTOR {18}
634  DF  .~ With means to convey fluent medium through collector {7}
651  DF  .~.~ Conduit absorber structure {9}
674  DF  .~.~.~ Absorber having extended surface {1}
675.~.~.~.~ Corrugated surface

DEFINITION

Classification: 126/675

Corrugated surface:

(under subclass 674) Apparatus wherein the heat exchange surface is formed into parallel and alternating ridges and grooves.