Document Type and Number:
Japanese Patent JPS5740437
Kind Code:
B2
Application Number:
JP8709274A
Publication Date:
August 27, 1982
Filing Date:
July 31, 1974
Export Citation:
International Classes:
F28D15/02; B21C37/20; B21D31/00; B23P15/26; F28D15/00; F28D15/04