Document Type and Number:
Japanese Patent JPH0227927
Kind Code:
Y2
Application Number:
JP20242586U
Publication Date:
July 27, 1990
Filing Date:
December 26, 1986
Export Citation:
International Classes:
B21D11/07; B21F3/08; (IPC1-7): B21D11/07; B21F3/08
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