Currently Viewing: DocumentHTML Offering Circular f1a2017a1ex2i_duke.htm f1a2017a1ex2ii_duke.htm f1a2017a1ex2iv_duke.htm f1a2017a1ex3i_duke.htm f1a2017a1ex3ii_duke.htm f1a2017a1ex6i_duke.htm f1a2017a1ex6ii_duke.htm f1a2017a1ex6iii_duke.htm f1a2017a1ex6iv_duke.htm f1a2017a1ex6v_duke.htm f1a2017a1ex6vi_duke.htm f1a2017a1ex6vii_duke.htm f1a2017a1ex6viii_duke.htm f1a2017a1ex6ix_duke.htm f1a2017a1ex6x_duke.htm f1a2017a1ex6xi_duke.htm f1a2017a1ex6xii_duke.htm f1a2017a1ex8i_duke.htm f1a2017a1ex15i_duke.htm img_001.jpg img_002.jpg img_003.jpg img_004.jpg img_005.jpg img_006.jpg img_007.jpg img_008.jpg img_009.jpg img_010.jpg eximg_001.jpg ex8i_001.jpg 0001213900-17-007249.txt