Document Type and Number:
Japanese Patent JPS53164152
Kind Code:
U
Application Number:
JP6970877U
Publication Date:
December 22, 1978
Filing Date:
May 30, 1977
Export Citation:
International Classes:
G03G15/08; H01F1/00; H01F7/02; (IPC1-7): G03G15/08; H01F1/00
Domestic Patent References:
| JPS49120196A | 1974-11-16 |