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| 100 | 1 | _aThielen, J. van | |
| 245 | 0 | 0 | _aOnline classification and indexation of documents at the European Patent Office |
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_aEuropäisches Patentamt _91208 |
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_aPatentklassifikation _93471 |
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_aWPI. 20(1998),1,17-20 _wz_WPI |
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