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APPARATUS FOR DETECTING LEAKS IN WATER FILLED SPACE OF SHIPBORNE CONDENSERS OF REFRIGERANT-TYPE COLD STORAGE PLANTS ESPECIALLY THOSE EMPLOYING HALOGEN DERIVATIVE (CFC) REFRIGERANTS
APPARATUS FOR DETECTING LEAKS IN WATER FILLED SPACE OF SHIPBORNE CONDENSERS OF REFRIGERANT-TYPE COLD STORAGE PLANTS ESPECIALLY THOSE EMPLOYING HALOGEN DERIVATIVE (CFC) REFRIGERANTS