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Companies and contacts
 
- Osram products. Headquarter Germany, Hellabrunner Strasse 1, D-81543 Munchen, Tel: +49 89 62 13 0, Fax: +49 89 62 13 20 20,  webmaster@osram.de
 
The website contains an Encyclopedia of Light. See also online  Product Catalogue. 
  
 -   Mikrolab Aarhus A/S , 
    Tel: +45 86 29 61 11, Fax: +45 86 29 61 22 (Hollow cathode lamps only.)
  
 -   Cathodeon , which Spanish distributer  Sugelabor S.A. , Calle Sicilia, 36, 28038 Madrid, Tel: 91 501 39 36, Fax: 91 501 39 38, info@sugelabor.com 
  Product catalogue available at NOT.
  
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