Document Type and Number:
Japanese Patent JPS57178906
Kind Code:
U
Application Number:
JP6663081U
Publication Date:
November 12, 1982
Filing Date:
May 11, 1981
Export Citation:
International Classes:
F22D1/32; F28D7/00; F28D7/16; F28F9/22; (IPC1-7): F22D1/32; F28D7/00; F28F9/22