35 Arranging and conducting trade fairs and exhibitions in the fields of industrial manufacturing, machines, tools, product research and development, and supply management of spare parts for machines and tools; advertising services, namely cooperative advertising, placing advertising for others, modeling for advertising or sales promotion, preparing advertising campaigns for others, preparing promotional press releases for others, rental of publicity materials and displays, updating of advertising materials for others, dissemination of advertising matter for others, publication of publicity texts, rental of advertising space, electronic billboard advertising, enterprise public relations, radio advertising, bill posting, distribution of samples, film advertising, outdoor advertising, direct mail advertising, advertising by mail order, providing television advertising for others, and rendering sales promotion advice