Document Type and Number:
Japanese Patent JPS6427947
Kind Code:
U
Application Number:
JP12160287U
Publication Date:
February 17, 1989
Filing Date:
August 07, 1987
Export Citation:
International Classes:
H01J7/26; H01J31/10; H04N5/74; (IPC1-7): H01J7/26; H01J31/10; H04N5/74