div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-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:reader033vdokumentcomreader033viewer20220528046049342b8d3221434254bc8ehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv