Document Type and Number:
Japanese Patent JPS63172559
Kind Code:
U
Application Number:
JP6437487U
Publication Date:
November 09, 1988
Filing Date:
April 28, 1987
Export Citation:
International Classes:
B24B31/073; (IPC1-7): B24B31/073
Domestic Patent References:
| JPS5140316A | 1976-04-05 | |||
| JP56158586B |