Document Type and Number:
Japanese Patent JPS5612765
Kind Code:
Y2
Application Number:
JP5057578U
Publication Date:
March 24, 1981
Filing Date:
April 17, 1978
Export Citation:
International Classes:
H01J9/24; H01J7/24; H01J9/38; H01J9/385; (IPC1-7): H01J9/24; H01J7/24
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