Document Type and Number:
Japanese Patent JPS5210138
Kind Code:
B2
Application Number:
JP7637172A
Publication Date:
March 22, 1977
Filing Date:
July 30, 1972
Export Citation:
International Classes:
B21D31/00; B29B13/00; B29C31/00; B29C33/00; B29C33/38; B29C59/00; B29C59/02; B29C69/00