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Patent Searching and Data

Document Type and Number:
Japanese Patent JPS59101560
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Publication Date:
July 09, 1984
Filing Date:
December 24, 1982
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International Classes:
G03B7/26; G03B13/02; G03B31/00; H04N5/225; H04R11/00; (IPC1-7): H04N5/26; G03B7/26; G03B13/02; G03B31/00; H04R11/00

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