Appeal No. 1998-2311 Application No. 08/401,869 electrodes at each end of the chamber that are aligned with a longitudinal axis of the chamber, and reference electrodes along opposing sides of the chamber that are aligned with a lateral axis of the chamber, at least one of the reference electrodes having 3Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007