3Com old logo Posted on June 24, 2015 by admin 3Com old logo Sign - Symbol - Watermark - Trademark - Company logo. The below image is of the 3Com old logo showing the sign by itself or the logo including the brand name of the relevant organization. 3Com old logo Tags: 3com old, 3com old brand, 3com old logo, 3com old logos, 3com old sign, 3com old symbol, 3com old trademark