NATIONAL LABOR RELATIONS BOARD, Petitioner/Cross-Respondent, v. PAN AMERICAN GRAIN CO., INC. and Pan American Grain Manufacturing Co., Inc., Respondent/Cross-Petitioner. No. 05-1274.United States Court of Appeals, First Circuit.Submitted November 10, 2005. Decided May 31, 2006. Page 466 Ruperto J. Robles and Rafael J. Lopez on brief for respondent/cross-petitioner. Arthur F. Rosenfeld, Acting General Counsel, John E. […]