Document Type and Number:
Japanese Patent JPH0463498
Kind Code:
B2
Inventors:
NIIHAMA SEIZO
Application Number:
JP29818985A
Publication Date:
October 12, 1992
Filing Date:
December 31, 1985
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
H01J23/20; H01J25/10
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