220 / | HD | RECEPTACLES |
592.01 | DF | RECEPTACLE HAVING MEANS TO FACILITATE MAINTAINING CONTENTS ABOVE OR BELOW AMBIENT TEMPERATURE (E.G., COMPARTMENT FOR HOLDING A HEAT EXCHANGE MEDIUM) {5} |
592.2 | DF | .~ Thermally insulated receptacle {6} |
592.21 | .~.~ Including means for reflecting heat |