Document Type and Number:
Japanese Patent JPS50161451
Kind Code:
A
Application Number:
JP6111775A
Publication Date:
December 27, 1975
Filing Date:
May 23, 1975
Export Citation:
International Classes:
B21D31/00; B24B1/00; B24B7/19; B24B39/04; B24D7/18; B44B5/00; (IPC1-7): B24B1/00; B24D5/00