On 21 December 1979 about 51 companies were established in Belgium.
0420.103.634
0420.108.483
0420.114.819
0420.119.767
0420.123.925
0420.144.612
0420.149.758
0420.149.956
0420.151.441
0420.161.438
0420.352.864
0516.697.719
0606.513.185
0634.660.508
0854.144.584
0868.672.414
0419.947.345
0419.967.339