Document Type and Number:
Japanese Patent JPH0447744
Kind Code:
U
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Application Number:
JP8745890U
Publication Date:
April 23, 1992
Filing Date:
August 23, 1990
Export Citation:
International Classes:
G06K11/06; G06F3/03; G06F3/041; (IPC1-7): G06F3/03; G06K11/06
Next Patent: VIDEO CONFERENCE SYSTEM