BETZ LABORATORIES, INC., APPELLANT, v. JOHN M. HINES, GERALD W. BLAKELEY, JR., AND FERDINAND COLLOREDO-MANSFELD, TRUSTEES OF THE CABOT 95 TRUST AND CABOT, CABOT FORBES CO. No. 80-2227.United States Court of Appeals, Third Circuit.Argued January 15, 1981. Decided May 5, 1981. Edward M. Posner (argued), Susan C. Waltman, Drinker, Biddle Reath, Philadelphia, Pa., for appellant. […]