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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH02143884
Kind Code:
U
More Like This:
Application Number:
JP5264789U
Publication Date:
December 06, 1990
Filing Date:
May 09, 1989
Export Citation:
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International Classes:
H01J7/28; H01J31/10; H04N5/74; H04N9/31; (IPC1-7): H04N5/74; H01J7/28; H04N9/31



 
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