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Dispositivo osmotico avente duplice attivita' termodinamica per la erogazione a velocita' controllata di una sostanza, particolarmente un farmaco, all'ambiente a cui e' destinata.
N,N'- digesubstitueerde ureum-, thioureum-, guanidine- en diaminoetheenderivaten, werkwijze voor de bereiding daarvan en farmaceutische preparaten die deze derivaten bevatten.
1-metyl-3, 5, 7-triaza-1-azoniatricyklodekan trijodid, fremgangsmaate for fremstilling derav, og anvendelse derav ved bekjempelse av mikroorganismer i vandige systemer.