Document Type and Number:
Japanese Patent JPS5519157
Kind Code:
U
Application Number:
JP10143178U
Publication Date:
February 06, 1980
Filing Date:
July 25, 1978
Export Citation:
International Classes:
C21B7/16; (IPC1-7): C21B7/16
Domestic Patent References:
| JPS497284A | 1974-01-22 |