On 4 March 1980 about 23 companies were established in Belgium.
0420.181.531
0420.225.378
0420.234.583
0420.238.939
0420.239.038
0420.239.434
0420.259.131
0420.267.148
0420.318.915
0420.368.504
0420.369.888
0420.383.746
0420.463.128
0420.483.122
0420.599.819
0420.935.656
0636.464.411
0653.231.058
0420.214.490
0420.245.768
0420.382.459