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Priority to JP8738475ApriorityCriticalpatent/JPS5211160A/ja
Publication of JPS5211160ApublicationCriticalpatent/JPS5211160A/ja
Publication of JPS5234430B2publicationCriticalpatent/JPS5234430B2/ja
JP8738475A1975-07-181975-07-18Method of presssforming and machining metal article having spiral groove on inner wall of hollow cylinder
GrantedJPS5211160A
(en)