Document Type and Number:
Japanese Patent JPS55118473
Kind Code:
U
Application Number:
JP1858579U
Publication Date:
August 21, 1980
Filing Date:
February 15, 1979
Export Citation:
International Classes:
H01J61/34; H01J61/35; (IPC1-7): H01J61/34; H01J61/35
Domestic Patent References:
| JPS4733472A |