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Information Systems Guides (CCTA Information Systems Guides)
Central Computer & Telecommunications Agency1989
Data content specifications for Patent concordance in computer-readable form in standard distribution format
American Chemical Society Chemical Abstracts Service1972
Samples of patent concordance data elements in standard distribution format
American Chemical Society Chemical Abstracts Service1972
Information retrieval among patent offices
Committee for International Cooperation in Information Retrieval Among Examining Patent Offices.1969