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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5658650
Kind Code:
U
Application Number:
JP13918179U
Publication Date:
May 20, 1981
Filing Date:
October 09, 1979
Export Citation:
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International Classes:
G03B27/54; G03G15/04; G03G15/043; H01J7/00; (IPC1-7): G03B27/54; G03G15/04; H01J7/00