Calco Chemical Company, Inc. In matter of Calco Chemical Company, Inc., and The Calcocraft; in matter of American Cyanamid Company, Calco Chemical Company, Inc., its subsidiary, and Beetleware Dept., subdivision of said American Cyanamid Company and Chemical Workers Local No. 20923, American Federation of Labor, cases nos. R-304 and R-305; certification of representatives, July 15, 1939.