Document Type and Number:
Japanese Patent JPS5341143
Kind Code:
Y2
Application Number:
JP11488375U
Publication Date:
October 04, 1978
Filing Date:
August 19, 1975
Export Citation:
International Classes:
B21B27/02; B21B1/08; B21B1/088; B21D3/05; (IPC1-7): B21B27/02; B21B1/08; B21D3/05