Document Type and Number:
Japanese Patent JPS5194755
Kind Code:
A
Application Number:
JP2066175A
Publication Date:
August 19, 1976
Filing Date:
February 18, 1975
Export Citation:
International Classes:
H01J3/02; H01J1/16; H01J37/06; (IPC1-7): H01J1/16; H01J3/02