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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4839501
Kind Code:
B1
Application Number:
JP1406269A
Publication Date:
November 24, 1973
Filing Date:
February 24, 1969
Export Citation:
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International Classes:
G06K7/00; G06F1/04; G06F11/20; G06F13/00; H04M3/22