Document Type and Number:
Japanese Patent JPS5331727
Kind Code:
Y2
Application Number:
JP7459973U
Publication Date:
August 07, 1978
Filing Date:
June 22, 1973
Export Citation:
International Classes:
H01J23/027; H01J23/20; H01J25/10; H01J25/34; (IPC1-7): H01J23/027