The 3M Company began in 1902 in Two Harbors, Minnesota. 3M Company is known for its culture of innovation and investment in research and development which has resulted in the invention of many new products for both the industrial and consumer markets.  Among the products invented, manufactured, and sold by 3M Company are a variety of types of adhesive tape, audio-visual equipment and media, medical and dental products, Post-It Notes, and safety products such as reflective coatings and signs.