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Date: 2009-03-10 07:02:16Kirin-Amgen v Hoechst Marion Roussel Person having ordinary skill in the art Inventive step and non-obviousness Air filter Prior art Electronic filter Patent Photographic filter Patent law Law Claim | Patent Opinion under Section 74A 28/08Add to Reading ListSource URL: www.ipo.gov.ukDownload Document from Source WebsiteFile Size: 421,47 KBShare Document on Facebook |