Document Type and Number:
Japanese Patent JPS5053994
Kind Code:
A
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Application Number:
JP5139274A
Publication Date:
May 13, 1975
Filing Date:
May 10, 1974
Export Citation:
International Classes:
B21D28/32; B21D28/24; B21D28/34; B21D37/02; B21D37/08; B23D79/00; (IPC1-7): B23D79/00