Document Type and Number:
Japanese Patent JPH0425798
Kind Code:
Y2
Application Number:
JP2906185U
Publication Date:
June 22, 1992
Filing Date:
February 28, 1985
Export Citation:
International Classes:
H01J23/00; H01J7/26; H01J23/02; H01J23/087; (IPC1-7): H01J23/00; H01J23/087
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