Document Type and Number:
Japanese Patent JPH02133795
Kind Code:
U
Application Number:
JP4270789U
Publication Date:
November 06, 1990
Filing Date:
April 11, 1989
Export Citation:
International Classes:
G06F3/14; G06F3/048; G08B23/00; G08B25/04; G09F9/00; G09G3/00; (IPC1-7): G08B23/00; G06F3/14; G09F9/00; G09G3/00