Document Type and Number:
Japanese Patent JPS6114053
Kind Code:
Y2
Application Number:
JP14569878U
Publication Date:
May 01, 1986
Filing Date:
October 23, 1978
Export Citation:
International Classes:
G09B7/07; G06Q50/00; G06Q50/10; G06Q50/20; G09B7/073; G09B15/00; (IPC1-7): G09B7/073