Document Type and Number:
Japanese Patent JPS62189694
Kind Code:
U
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Application Number:
JP7801286U
Publication Date:
December 02, 1987
Filing Date:
May 23, 1986
Export Citation:
International Classes:
G04F3/00; G04F10/00; G04G13/00; (IPC1-7): G04F3/00; G04F10/00; G04G13/00