The next are trademarks for one or more DEWALT power tools, equipment, anchors and concrete adhesives: The yellow and black shade scheme; the “D”-shaped air intake grill; the variety of pyramids within the handgrip; the kit box configuration; and the array of lozenge-shaped humps on the surface of the tool. https://dewaltdcb135cbattery89009.theideasblog.com/27175053/about-dewalt-dcps620b-20v-max-xr