Document Type and Number:
Japanese Patent JPS50115163
Kind Code:
A
Application Number:
JP1589674A
Publication Date:
September 09, 1975
Filing Date:
February 09, 1974
Export Citation:
International Classes:
B21D31/00; B21D17/00; B21D17/04; B21D51/00; B44B5/00; (IPC1-7): B21D17/00; B21D51/00