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Publication of JPS4941269ApublicationCriticalpatent/JPS4941269A/ja
Publication of JPS5231306B2publicationCriticalpatent/JPS5231306B2/ja
F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES