Document Type and Number:
Japanese Patent JPS5721898
Kind Code:
U
Application Number:
JP9957280U
Publication Date:
February 04, 1982
Filing Date:
July 15, 1980
Export Citation:
International Classes:
F17C9/02; F17C7/04; F17C13/00; F17C13/04; (IPC1-7): F17C9/02; F17C13/04