Document Type and Number:
Japanese Patent JPS55119572
Kind Code:
U
Application Number:
JP1748379U
Publication Date:
August 23, 1980
Filing Date:
February 13, 1979
Export Citation:
International Classes:
F28F9/22; F28D1/04; F28D1/047; (IPC1-7): F28D1/04; F28F9/22