Document Type and Number:
Japanese Patent JPS6275670
Kind Code:
U
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Application Number:
JP13014385U
Publication Date:
May 14, 1987
Filing Date:
August 27, 1985
Export Citation:
International Classes:
H04M9/00; G08B25/04; G08B27/00; (IPC1-7): H04M9/00; G08B27/00