Document Type and Number:
Japanese Patent JPS6417585
Kind Code:
U
Application Number:
JP11216987U
Publication Date:
January 27, 1989
Filing Date:
July 22, 1987
Export Citation:
International Classes:
G09F9/30; G09F13/20; H01J61/00; (IPC1-7): G09F13/20; G09F9/30; H01J61/00
Domestic Patent References:
| JPS5283198A | 1977-07-11 |
Foreign References:
| EP0109671A2 | 1984-05-30 |