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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS56529
Kind Code:
Y2
Application Number:
JP230675U
Publication Date:
January 08, 1981
Filing Date:
December 25, 1974
Export Citation:
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International Classes:
H01J7/24; H01J23/00; H01J23/033; H01J23/08; H01J23/083; H01J23/087; (IPC1-7): H01J23/033; H01J23/083