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
Yoosoh
Prafenne,
1871 Choëx (Wallis)
Switzerland
Monnet
route de Prafenne 150,
1871 Choëx (Wallis)
Switzerland