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Document Type and Number:
Japanese Patent JPH0520165
Kind Code:
B2
Inventors:
YAMAKAWA TOMIO
HAYASHI CHIHIRO
Application Number:
JP19955687A
Publication Date:
March 18, 1993
Filing Date:
August 10, 1987
Export Citation:
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Assignee:
SUMITOMO METAL IND
International Classes:
B21B19/04



 
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