Document Type and Number:
Japanese Patent JPS523975
Kind Code:
Y1
Application Number:
JP7772369U
Publication Date:
January 27, 1977
Filing Date:
August 18, 1969
Export Citation:
International Classes:
H01J23/06; H01J23/00; H01J25/00; (IPC1-7): H01J23/00; H01J25/00
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