Document Type and Number:
Japanese Patent JPS5337570
Kind Code:
Y2
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Application Number:
JP14684273U
Publication Date:
September 12, 1978
Filing Date:
December 20, 1973
Export Citation:
International Classes:
H01J7/24; H01J23/00; H01J23/033; H01J25/50; (IPC1-7): H01J7/24; H01J23/033