Document Type and Number:
Japanese Patent JPS5336049
Kind Code:
Y2
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Application Number:
JP7205571U
Publication Date:
September 02, 1978
Filing Date:
August 13, 1971
Export Citation:
International Classes:
H01J23/15; H01J23/12; H01J23/14; H01J25/50; H04B15/00; (IPC1-7): H01J23/14; H01J23/12