US PATENT SUBCLASS 126 / 686
.~.~.~ Flat and curved

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

569  DF  SOLAR HEAT COLLECTOR {18}
684  DF  .~ With concentrating reflector {5}
685  DF  .~.~ Plural reflectors in optical series {2}
686.~.~.~ Flat and curved

DEFINITION

Classification: 126/686

Flat and curved:

(under subclass 685) Apparatus wherein one of said surfaces is planar and wherein the other of said surfaces deviates from planarity in a smooth, continuous way. [figure]