US PATENT SUBCLASS 159 / 903
.~ Solar

Current as of: June, 1999
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159 /   HD   CONCENTRATING EVAPORATORS

902  DF  USING NATURAL HEAT {1}
903.~ Solar {1}
904  DF  .~.~> Floating solar still

DEFINITION

Classification: 159/903

Solar:

Art collection under 902 wherein the sun furnishes heat.