Document Type and Number:
Japanese Patent JPS57202159
Kind Code:
U
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Application Number:
JP8870281U
Publication Date:
December 23, 1982
Filing Date:
June 18, 1981
Export Citation:
International Classes:
G07G1/12; G07G1/00; (IPC1-7): G06F15/21; G07G1/00
Domestic Patent References:
JP54050936B |