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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6432587
Kind Code:
U
Application Number:
JP12576287U
Publication Date:
March 01, 1989
Filing Date:
August 20, 1987
Export Citation:
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International Classes:
G06C3/00; G09B29/10; G09F11/04; (IPC1-7): G09F11/04; G06C3/00; G09B29/10
Domestic Patent References:
JP60088770B
JPS616495U1986-01-16
JPS5640044B21981-09-17