CAEN - Costruzioni Apparecchiature Elettroniche Nucleari SpA - Viareggio, Italy Hamamatsu - Italy Goodfellow - Huntingdon, England Electron Tubes - Ruislip, UK Saint-Gobain Crystals - Soest, The Netherlands
Hamamatsu - Italy Goodfellow - Huntingdon, England Electron Tubes - Ruislip, UK Saint-Gobain Crystals - Soest, The Netherlands
Goodfellow - Huntingdon, England Electron Tubes - Ruislip, UK Saint-Gobain Crystals - Soest, The Netherlands
Electron Tubes - Ruislip, UK Saint-Gobain Crystals - Soest, The Netherlands
Saint-Gobain Crystals - Soest, The Netherlands