Document Type and Number:
Japanese Patent JPS5224271
Kind Code:
U
Application Number:
JP11130975U
Publication Date:
February 21, 1977
Filing Date:
August 12, 1975
Export Citation:
International Classes:
B02C13/282; (IPC1-7): B02C13/282
Domestic Patent References:
| JPS5158966U | 1976-05-10 | |||
| JP43009167A | ||||
| JP39012184A |