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METHOD OF SUPPLYING HEAT AND BENEFICIAL NATURAL RADIATION TO AN ACCUMULATION-TYPE HEATING UNIT FOR KEEPING WARM HIP JOINTS AND VERTEBRAL COLUMN OF SITTING OR SLEEPING PERSONS AND HEATING UNIT THEREFOR
METHOD OF SUPPLYING HEAT AND BENEFICIAL NATURAL RADIATION TO AN ACCUMULATION-TYPE HEATING UNIT FOR KEEPING WARM HIP JOINTS AND VERTEBRAL COLUMN OF SITTING OR SLEEPING PERSONS AND HEATING UNIT THEREFOR
