Document Type and Number:
Japanese Patent JPS637864
Kind Code:
B2
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Inventors:
KAZAMI MITSUO
YAMAZAKI EIKICHI
YAMAZAKI EIKICHI
Application Number:
JP3660283A
Publication Date:
February 18, 1988
Filing Date:
March 08, 1983
Export Citation:
Assignee:
TOYO SEIKAN KAISHA LTD
International Classes:
B21D31/04; B21D51/26