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Priority to JP15871075ApriorityCriticalpatent/JPS5284158A/ja
Publication of JPS5284158ApublicationCriticalpatent/JPS5284158A/ja
Publication of JPS5333537B2publicationCriticalpatent/JPS5333537B2/ja
JP15871075A1975-12-301975-12-30Method of and apparatus for continuously forming horizontally stiffened rib and vertically stiffened rib on metal strip material
GrantedJPS5284158A
(en)