Sonja Louisa Leona Ceulemans

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Weert, NL

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Patents Grantslast 30 patents

Information Patent Grant
Colored electric lamp with a colored pigment-containing coating
- Patent number 6,841,937
- Issue date Jan 11, 2005
- Koninklijke Philips Electronics N.V.
- Joachim Opitz
- C03 - GLASS MINERAL OR SLAG WOOL