Document Type and Number:
Japanese Patent JPH0239617
Kind Code:
Y2
Application Number:
JP17031487U
Publication Date:
October 24, 1990
Filing Date:
November 06, 1987
Export Citation:
International Classes:
B21D17/02; B21D31/00; B21D39/04; (IPC1-7): B21D17/02; B21D31/00; B21D39/04
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