Document Type and Number:
Japanese Patent JPS5620198
Kind Code:
Y2
Application Number:
JP6902477U
Publication Date:
May 13, 1981
Filing Date:
May 27, 1977
Export Citation:
International Classes:
B23D63/14; B23D63/12; B24B3/00; B24B3/38; (IPC1-7): B24B3/00; B23D63/12