Document Type and Number:
Japanese Patent JPH0137798
Kind Code:
Y2
Application Number:
JP6687483U
Publication Date:
November 14, 1989
Filing Date:
May 06, 1983
Export Citation:
International Classes:
B21C37/22; B21D5/08; B21D13/04; B21D53/02; B21D53/08; (IPC1-7): B21D53/08; B21D13/04
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