NATIONAL LABOR RELATIONS BOARD, PETITIONER, v. NASHUA PRE-CAST CORPORATION, RESPONDENT. No. 72-1339.United States Court of Appeals, First Circuit.Argued March 6, 1973. Decided March 16, 1973. Edward N. Bomsey, Attorney, Washington, D.C., with whom Peter G. Nash, General Counsel, Patrick Hardin, Associate General Counsel, Marcel Mallet-Prevost, Asst. General Counsel, and Leonard M. Wagman, Attorney, Los Angeles, […]