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100 1 _aKnuth, Sisko , Pehu, Tuula
700 1 _aGyllenberg, H. G.
245 0 0 _aCharacterization of genetic engineering inventions in patent claims
650 _aBiotechnologie
_9462
650 _aPatentrecht
_93576
773 0 _aWPI. 9(1987),4,229-234.
_wz_WPI
999 _c8648
_d8648