div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: KOOR · Patentschrift bezeichneten Ver- tragsstaaten erteilt worden ist Europåisches Patent Nf CERTIFICATE it is hereby certified that a European patent has been granted in respect src=https:reader033fdokumentcomreader033viewer20220528046049342b8d3221434254bc8ehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv