126 / | HD | STOVES AND FURNACES |
|
569 | DF | SOLAR HEAT COLLECTOR {18} |
634 | DF | .~ With means to convey fluent medium through collector {7} |
651 | | .~.~ Conduit absorber structure {9} |
652 | DF | .~.~.~> Surrounded by transparent enclosure {5} |
658 | DF | .~.~.~> Having heat-absorbing fin or plate {4} |
663 | DF | .~.~.~> Plural conduits {2} |
666 | DF | .~.~.~> Rectangular metallic conduit {1} |
668 | DF | .~.~.~> Rectangular nonmetallic conduit {1} |
670 | DF | .~.~.~> Circular metallic conduit {1} |
672 | DF | .~.~.~> Circular nonmetallic conduit {1} |
674 | DF | .~.~.~> Absorber having extended surface {1} |
676 | DF | .~.~.~> Particular absorber material {1} |