F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
F25D23/00—General constructional features
F25D23/06—Walls
F25D23/065—Details
F25D23/068—Arrangements for circulating fluids through the insulating material
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Devices That Are Associated With Refrigeration Equipment
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Cold Air Circulating Systems And Constructional Details In Refrigerators
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