Document Type and Number:
Japanese Patent JPS6312918
Kind Code:
Y2
Application Number:
JP11673182U
Publication Date:
April 13, 1988
Filing Date:
July 30, 1982
Export Citation:
International Classes:
B24B31/104; B24B31/02; B24B31/12; (IPC1-7): B24B31/104; B24B31/12