393 U.S. 357 393 U.S. 357 89 S.Ct. 541 21 L.Ed.2d 546 NATIONAL LABOR RELATIONS BOARD, Petitioner,v.Joseph T. STRONG, d/b/a Strong Roofing & Insulating Co. No. 61. Argued Dec. 10, 1968. Decided Jan. 15, 1969. Harris Weinstein, Washington, D.C., for petitioner. Charles G. Bakaly, Jr., Los Angeles, Cal., for respondent. Mr. Justice WHITE delivered the […]