Document Type and Number:
Japanese Patent JPS5435646
Kind Code:
Y2
Application Number:
JP584074U
Publication Date:
October 29, 1979
Filing Date:
January 09, 1974
Export Citation:
International Classes:
H01J7/24; H01J19/74; H01J23/00; H01J23/033; (IPC1-7): H01J23/033