Document Type and Number:
Japanese Patent JPS5018864
Kind Code:
B1
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Application Number:
JP2374867A
Publication Date:
July 02, 1975
Filing Date:
April 14, 1967
Export Citation:
International Classes:
B21D31/00; B21D22/00; B44C1/22; C23F1/00; C23F1/02; (IPC1-7): C23F1/00; B21D22/00; B44C1/22; C23F1/02