The next are trademarks for a number of DEWALT power tools, accessories, anchors and concrete adhesives: The yellow and black color scheme; the “D”-shaped air intake grill; the array of pyramids over the handgrip; the package box configuration; and the variety of lozenge-shaped humps on the surface from the tool. https://finnblnos.dm-blog.com/26834029/not-known-factual-statements-about-dewalt-20v-lithium-ion-battery