Document Type and Number:
Japanese Patent JPS6421956
Kind Code:
U
Application Number:
JP11700087U
Publication Date:
February 03, 1989
Filing Date:
July 30, 1987
Export Citation:
International Classes:
H01J61/30; H01J61/36; (IPC1-7): H01J61/30; H01J61/36
Domestic Patent References:
| JP63117050B |