Original industrial trade vintage catalog for RESEARCH CORPORATION, was located in the Chrysler Building, New York City, NY. Cottrell Electrical Precipitation Processes, Manufacturers of Multiclone Dust Collectors, Coey Multistage Cooling Towers, Calorider Humidity Control. Disbound from a large 1936 industrial catalog, this unique old one page technical brochure would display beautifully matted and framed. A marvelous addition to your retro industrial equipment library.