Search (3 results, page 1 of 1)

  1. Dickens, D.T.: ¬The ECLA classification system (1994) 10.29
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  2. Rampelmann, J.: Classification tools at the EPO (1996) 10.29
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  3. Thielen, J. van: Online classification and indexation of documents at the European Patent Office (1998) 10.29
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