Document Type and Number:
Japanese Patent JPS5330862
Kind Code:
U
Application Number:
JP11333876U
Publication Date:
March 16, 1978
Filing Date:
August 23, 1976
Export Citation:
International Classes:
H01J7/22; H01J23/00; H01J23/10; H01J23/14; H01J23/40; (IPC1-7): H01J23/00; H01J7/22; H01J23/10; H01J23/14
Domestic Patent References:
JPS519677A | 1976-01-26 | |||
JPS5030655B1 | 1975-10-02 | |||
JP38014082A | ||||
JP43004281A |