Document Type and Number:
Japanese Patent JPS57500945
Kind Code:
A
Application Number:
JP50129181A
Publication Date:
May 27, 1982
Filing Date:
July 07, 1980
Export Citation:
International Classes:
B21D53/04; F28D9/00; F28F3/04; (IPC1-7): F28F3/04; B21D53/04; F28D9/00