Trade Mark of the DVB Digital Video Broadcasting Project (1991 to 1996) ID Number(s): 6551 : 42PQ1000-ZA 6549 : 50PQ1000-ZA 6630 : 42PQ1000-ZD 6631 : 50PQ1000-ZD 6632 : 42PQ1100-ZE 6633 : 50PQ1100-ZE ...