Combination Marks – Combination Marks are graphics with both text and a symbol/icon that signifies the brand image that you wish to project for your company or organization. Concise text can complement an icon or symbol, providing supplemental clarity as to what your enterprise is all about.

There are integrated and stand alone combination marks. For instance, Starbucks logo has the text with the graphic integrated, whereas the AT&T logo has the icon separate from the text.(text source)
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