Document Type and Number:
Japanese Patent JPH025981
Kind Code:
U
Application Number:
JP8316888U
Publication Date:
January 16, 1990
Filing Date:
June 23, 1988
Export Citation:
International Classes:
H01J29/00; H01J7/26; H01J29/89; H01J31/10; H04N5/74; (IPC1-7): H04N5/74; H01J7/26; H01J29/00; H01J29/89; H01J31/10
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