SYLVANIA ELECTRIC PRODUCTS, INC., Petitioner, v. NATIONAL LABOR RELATIONS BOARD et al., Respondents. No. 6623.United States Court of Appeals, First Circuit.Heard March 4, 1966. Decided April 5, 1966. Gerard D. Reilly and Winthrop A. Johns, Washington, D.C., with whom Lawrence T. Zimmerman, Washington, D.C., Bruce Carswell, James P. Heffernan, New York City, and Reilly Wells, […]