Grain Systems PNEG-526 - Manual (Page 2)

THIS PRODUCT IS PROTECTED UNDER ONE OR MORE
OF THE FOLLOWING U.S. PATENTS:
6233843, 6189235, 6141886, 6101742, 6098305, 6088929,
6076276,
6073367, 6073364, 5570521, 6457256, 6035544, 5860221,
5653043,
5651193, 5604996,5566470, 5400525