Document Type and Number:
Japanese Patent JPH0143734
Kind Code:
Y2
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Application Number:
JP4989285U
Publication Date:
December 19, 1989
Filing Date:
April 05, 1985
Export Citation:
International Classes:
G06C3/00; G09B19/06; (IPC1-7): G09B19/06; G06C3/00
Next Patent: JPH0143735