D. Ward King
... that the King road drag, a road grader widely used across North America for grading dirt roads in the early 20th century, was invented by D. Ward King?
... that the <a href="./King_road_drag" id="mwBT0" rel="mw:WikiLink" title="King road drag">King road drag</a>, a <a href="./Grader" id="mwBT4" rel="mw:WikiLink" title="Grader">road grader</a> widely used across North America for <a class="mw-redirect" href="./Graded_road" id="mwBT8" rel="mw:WikiLink" title="Graded road">grading</a> <a href="./Dirt_road" id="mwBUA" rel="mw:WikiLink" title="Dirt road">dirt roads</a> in the early 20th century, was invented by <b id="mwBUE"><a href="./David_Ward_King" id="mwBUI" rel="mw:WikiLink" title="David Ward King">D. Ward King</a></b>?