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Document Type and Number:
Japanese Patent JPS5733449
Kind Code:
Y2
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Application Number:
JP5435578U
Publication Date:
July 23, 1982
Filing Date:
April 24, 1978
Export Citation:
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International Classes:
G09B19/02; G06C1/00; G06F3/02; G06F3/03; G06F3/147; (IPC1-7): G06F3/03; G06C1/00; G06F3/147



 
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