3m sign Posted on December 20, 2022 by admin 3m sign Sign - Symbol - Watermark - Trademark - Company logo. The below image is of the 3m sign showing the sign by itself or the logo including the brand name of the relevant organization. 3m sign Tags: 3m sign, 3m sign brand, 3m sign logo, 3m sign logos, 3m sign sign, 3m sign symbol, 3m sign trademark