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Document Type and Number:
Japanese Patent JPH0254167
Kind Code:
B2
Inventors:
YOSHIHARA SEISHIRO
KAWANAMI TAKAO
Application Number:
JP14766184A
Publication Date:
November 20, 1990
Filing Date:
July 18, 1984
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
B21B19/16; B21B19/12; B21B27/02; B21C3/02; B21H1/18; B21J7/18; B21J13/02



 
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