Article for the controlled delivery of an active substance, comprising a hollow space fully enclosed by a wall and filled in full or in part with one or more active substances

Jan Feijen (Inventor), H. Esselbrugge (Inventor)

Research output: Patent

Original languageUndefined
Patent number1e PCT / NL91 / 0001
Priority date30/01/91
Publication statusIn preparation - 30 Jan 1991


  • METIS-111227

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