Pushed sale of implements of industrial warfare, Washington, D.C. Sept. 24. Questioned by the Senate Committee investigating espionage in labor relations today, A.F. Ailes, executive of the Lake Erie Chemical Co., told of an inteensive drive that was made to sell implements of industrial warfare shortly after the C.I.O. began its campaign to unionize the steel industry. Ailes admitted he took part in a demonstration tear and nauseating gases last July for officials of the Pennsylvania Railway, Jones and Laughlin Steel Co., Erie Railroad, Westinghouse Electric Co., and the Carnegie Steel Co., but he said no sales resulted