Document Type and Number:
Japanese Patent JPH0447747
Kind Code:
U
Application Number:
JP8961890U
Publication Date:
April 23, 1992
Filing Date:
August 28, 1990
Export Citation:
International Classes:
G06F3/038; G06F3/041; G06F3/048; G06F3/0487; G06K11/06; (IPC1-7): G06F3/033; G06K11/18
Domestic Patent References:
| JPS62154020A | 1987-07-09 | |||
| JPH02176818A | 1990-07-10 |
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