Document Type and Number:
Japanese Patent JPS5545656
Kind Code:
Y2
Application Number:
JP2402075U
Publication Date:
October 25, 1980
Filing Date:
February 20, 1975
Export Citation:
International Classes:
H01J7/24; H01J23/00; H01J23/033; H01J23/10; H01J23/14; H01J23/15; H01J25/50; (IPC1-7): H01J23/033; H01J23/14