Document Type and Number:
Japanese Patent JPS5721665
Kind Code:
U
Application Number:
JP9978480U
Publication Date:
February 04, 1982
Filing Date:
July 14, 1980
Export Citation:
International Classes:
C21D1/00; C21D9/00; F27B9/24; F27B9/30; F27D3/02; (IPC1-7): C21D1/00