No. 7683. Argued January 5, 1942. Decided March 25, 1942. Appeal from the National Labor Relations Board. Petition by the National Labor Relations Board for enforcement of an order of the Board against Condenser Corporation of America and Cornell-Dubilier Electric Corporation, and Electrical Condensers Union, Local B-1041, of the International Brotherhood of Electrical Workers, intervenor. A petition for leave to adduce additional evidence was filed. Petition for an enforcing decree granted with