Russell began representing Pall's Aerospace divisions in 1955 within specified territories in the United States. Over the next 14 years Russell had made its sales engineers available for extensive technical training in fluid power systems and the fundamentals of fluid filtration and Pall's filter products and capabilities. The number of technically trained field sales people required to adequately promote Pall's products throughout the wide range of potential customers was beyond what Pall could afford in a direct sales force. An independent representative organization, which had other principals and products to sell within the same markets to supplement the costs of such a large group of people, was a solution that many other companies also sought through the use of manufacturers' representatives.