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History of the manufacturer  

Zelis, N. C., Maastricht

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Name: Zelis, N. C., Maastricht    (NL)  
Abbreviation: zelis
Zelis, N. C., Volksplein 5, Maastricht. Years of radio production: 1926 - 1927. This has been given to us by Frans J.J. Driesens.

Some models:
Country Year Name 1st Tube Notes
NL  24 no name