Document Type and Number:
Japanese Patent JPS52104356
Kind Code:
U
Application Number:
JP1230776U
Publication Date:
August 08, 1977
Filing Date:
February 04, 1976
Export Citation:
International Classes:
H01J7/24; H01J23/033; H01J23/10; (IPC1-7): H01J23/10; H01J23/033