Document Type and Number:
Japanese Patent JPS57123523
Kind Code:
U
Application Number:
JP815281U
Publication Date:
August 02, 1982
Filing Date:
January 23, 1981
Export Citation:
International Classes:
G06C3/00; B42D15/00; G09B29/00; (IPC1-7): G06C3/00; B42D15/00; G09B29/00