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Document Type and Number:
Japanese Patent JPH0378165
Kind Code:
B2
Application Number:
JP21497685A
Publication Date:
December 12, 1991
Filing Date:
September 30, 1985
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
B21B13/00; B21B1/16; B21B13/12; B21B19/02; B21B19/06



 
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