Document Type and Number:
Japanese Patent JPH0225521
Kind Code:
Y2
Application Number:
JP9751385U
Publication Date:
July 13, 1990
Filing Date:
June 28, 1985
Export Citation:
International Classes:
B21B25/00; B21B19/02; B21B23/00; (IPC1-7): B21B19/02; B21B23/00
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