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Priority to JP14287275ApriorityCriticalpatent/JPS5268049A/ja
Publication of JPS5268049ApublicationCriticalpatent/JPS5268049A/ja
Publication of JPS5421189B2publicationCriticalpatent/JPS5421189B2/ja
JP14287275A1975-12-031975-12-03Method of brazing among bulgy projections for keeping distance in middle of multiple step plate type oil cooler
GrantedJPS5268049A
(en)