US PATENT SUBCLASS 52 / 506.02
.~ For furnace or refrigeration

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

506.01  DF  SHEETLIKE ELEMENT ASSEMBLED PARALLEL TO EXISTING WALL, CEILING, OR FLOOR (E.G., INSULATING PANEL, SHEATHING) {10}
506.02.~ For furnace or refrigeration {1}
506.03  DF  .~.~> Mounted on frame {1}

DEFINITION

Classification: 52/506.02

For furnace or refrigeration:

(under subclass 506.01) Sheathing or insulator in which the panel is designed to inhibit the transfer of temperature therethrough to hold or maintain a temperature.

(1) Note. Included in this subclass are constructions with a heating means.