Document Type and Number:
Japanese Patent JPH0452238
Kind Code:
U
Application Number:
JP9154090U
Publication Date:
May 01, 1992
Filing Date:
September 03, 1990
Export Citation:
International Classes:
G06F3/0338; G06F3/0354; G06K11/06; (IPC1-7): G06F3/033; G06K11/18