Document Type and Number:
Japanese Patent JPH0318910
Kind Code:
U
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Application Number:
JP7609089U
Publication Date:
February 25, 1991
Filing Date:
June 28, 1989
Export Citation:
International Classes:
B21B35/14; B21C37/08; B21D5/12; (IPC1-7): B21D5/12; B21B35/14; B21C37/08