There are 16 separate divisions of the National Products co., each having its own headquarters and officers. The divisions are not separate in a corporate sense but are divisions of National Products operating under a plan of decentralization---both in physical location and in management. Each division manufactures a line of products unrelated to the other. For example, one makes oil drilling equipment, another makes special metals, and a third has a line of chemicals. Total employment of National Products is over 9000, but there are no more than 225 employees at any one location, since each division has from two to eight manufacturing plants. The small size of manufacturing plants occurred largely through the parent company’s acquisition of small companies over the years.