Document Type and Number:
Japanese Patent JPS52138588
Kind Code:
U
Application Number:
JP4782376U
Publication Date:
October 20, 1977
Filing Date:
April 15, 1976
Export Citation:
International Classes:
B23D63/12; B24B3/14; (IPC1-7): B23D63/12; B24B3/14
Domestic Patent References:
| JPS5024890B1 | 1975-08-19 | |||
| JPS4520589Y1 | 1970-08-18 |