Document Type and Number:
Japanese Patent JPS5190266
Kind Code:
A
Application Number:
JP1558375A
Publication Date:
August 07, 1976
Filing Date:
February 05, 1975
Export Citation:
International Classes:
H01J7/20; H01J7/24; H01J17/16; H01J17/22; (IPC1-7): H01J7/20; H01J17/22