Document Type and Number:
Japanese Patent JPS548673
Kind Code:
Y2
Application Number:
JP9169772U
Publication Date:
April 20, 1979
Filing Date:
August 03, 1972
Export Citation:
International Classes:
H01J23/10; H01J23/14; H01J23/15; H01J25/50; (IPC1-7): H01J23/14; H01J23/10
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