“Trademark AlSiMag (registered U.S. Pat. Office)” pamphlet- The copyright year on this pamphlet is 1946 by the American Lava Corporation. According to pamphlet the word “AlSiMag” derives from the combinations of the words alumina, silica, and magnesia. This pamphlet discusses how AlSiMag ceramics are made and some of its various uses as a product of the American Lava Corporation. For example, the pamphlet explains how to use an AlSiMag spreader when wiring an antenna to a conductor. Additionally, the pamphlet provides a comprehensive table of AlSiMag properties. Trademark AlSiMag Ceramics.