Witnesses include: Seth Abraham, pres. and CEO, Time Warner Sport; Jim Brady, boxing sportswriter, Boxing News; Alfonso Daniels, club boxer; Richard DeCuir, exec. officer, California State Athletic Commission; Joe DeGuardia, boxing manager and attorney; Thomas Hoover, Veteran Boxers Assoc. of New York; Roy Langbord, v.p., Showtime Networks Inc.; Floyd Patterson, chmn., N.Y. State Athletic Commission; Brenda Reneau, commissioner, accompanied by Skip Nicholson, administrative aide, Oklahoma Dept. of Labor; Richard Rose, pres., Caesars World Sports; and Gregory P. Sirb, exec. dir., Pennsylvania State Athletic Commission.