Document Type and Number:
Japanese Patent JPS5257485
Kind Code:
Y1
Application Number:
JP16084975U
Publication Date:
December 27, 1977
Filing Date:
December 01, 1975
Export Citation:
International Classes:
B21C47/24; B21C47/00; B21D43/00; B21D43/02; (IPC1-7): B21D43/00; B21C47/00
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