Herman Johannes Gertrudis Gielen

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Roosendaal, NL

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Patents Grantslast 30 patents

Information Patent Grant
Low-pressure mercury vapor discharge lamp having determined probabi...
- Patent number 7,358,677
- Issue date Apr 15, 2008
- Koninklijke Philips Electronics, N.V.
- Herman Johannes Gertrudis Gielen
- H01 - BASIC ELECTRIC ELEMENTS