Document Type and Number:
Japanese Patent JPS57156960
Kind Code:
U
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Application Number:
JP4347981U
Publication Date:
October 02, 1982
Filing Date:
March 27, 1981
Export Citation:
International Classes:
G06K7/10; G06K9/20; G06T1/00; (IPC1-7): G06K7/10; G06K9/20