Altura Architectural Products Division of Western Extrusions Corporation (Carrollton, Texas) brochure, "ALTURA, Frames for the Future" (publication date unknown, but in Applicants's possession since Jun. of 1991). |
Ragland Manufacturing Co., Inc. (Houston, Texas) catalog, "RACO Doors & Frames," pp. 8, 75, and 113 (publication date unknown). |
Unistrut Corporation, Unistrut Interior Building Systems Division (North Kansas City, Missouri) brochure, "COLORLINE.RTM. Partition Systems" (publication date unknown, but brochure is marked .COPYRGT.1986 Unistrut Corporation). |