Document Type and Number:
Japanese Patent JPS56530
Kind Code:
Y2
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Application Number:
JP2761475U
Publication Date:
January 08, 1981
Filing Date:
February 27, 1975
Export Citation:
International Classes:
H01J1/42; H01J7/24; H01J23/00; H01J23/033; H01J25/50; (IPC1-7): H01J23/033; H01J7/24
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