Duchoud
route de Prafenne 30,
1871 Choëx (Wallis)
Switzerland
Gay
techn. Ciba-Geigy SA
route de Prafenne 78,
1871 Choëx (Wallis)
Switzerland
Bertholet
route de Prafenne 50,
1871 Choëx (Wallis)
Switzerland
Monnet
route de Prafenne 150,
1871 Choëx (Wallis)
Switzerland