Document Type and Number:
Japanese Patent JPH0422533
Kind Code:
Y2
Application Number:
JP14508484U
Publication Date:
May 22, 1992
Filing Date:
September 26, 1984
Export Citation:
International Classes:
H01J23/033; H01J7/26; H01J23/00; H01J23/20; (IPC1-7): H01J23/00; H01J7/26; H01J23/20
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