Document Type and Number:
Japanese Patent JPS5686751
Kind Code:
U
Application Number:
JP17003279U
Publication Date:
July 11, 1981
Filing Date:
December 07, 1979
Export Citation:
International Classes:
H01J7/18; H01J23/00; H01J23/04; (IPC1-7): H01J23/00; H01J7/18; H01J23/04
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