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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5453354
Kind Code:
U
Application Number:
JP12751277U
Publication Date:
April 13, 1979
Filing Date:
September 21, 1977
Export Citation:
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International Classes:
H01J7/18; H01J23/00; H01J25/50; (IPC1-7): H01J23/00; H01J7/18; H01J25/50