The next are trademarks for a number of DEWALT power tools, extras, anchors and concrete adhesives: The yellow and black shade scheme; the “D”-shaped air ingestion grill; the variety of pyramids around the handgrip; the package box configuration; plus the assortment of lozenge-formed humps over the surface of the tool. https://tonyu679hfk5.wikiexcerpt.com/user