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Patent Searching and Data

Document Type and Number:
Japanese Patent JPS63173940
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Publication Date:
November 11, 1988
Filing Date:
April 28, 1987
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International Classes:
H04B10/11; G06F1/00; G06F3/00; H04B10/07; H04B10/112; H04B10/80; (IPC1-7): H04B9/00; G06F1/00

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