Document Type and Number:
Japanese Patent JPS525468
Kind Code:
B2
Application Number:
JP11001374A
Publication Date:
February 14, 1977
Filing Date:
September 26, 1974
Export Citation:
International Classes:
B21D31/00; B21D13/00; B21D13/10; B21H1/00; B21H7/00; B44B5/00; B44C1/24
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