Document Type and Number:
Japanese Patent JPS5724883
Kind Code:
U
Application Number:
JP9900380U
Publication Date:
February 09, 1982
Filing Date:
July 14, 1980
Export Citation:
International Classes:
F16L3/18; F28F9/00; F28F9/013; (IPC1-7): F28F9/00; F16L3/18