Document Type and Number:
Japanese Patent JPS49103198
Kind Code:
A
Application Number:
JP1492973A
Publication Date:
September 30, 1974
Filing Date:
February 05, 1973
Export Citation:
International Classes:
C04B35/40; H01F1/34
Domestic Patent References:
| JP43005344A | ||||
| JPS4715699A |