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Jaap Rozenboom
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Eindhoven, NL
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last 30 patents
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Patent Grant
Discharge lamp ignition and supply circuit having a PTC resistor
Patent number
4,647,820
Issue date
Mar 3, 1987
U.S. Philips Corporation
Hubertus M. J. Chermin
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Patent Grant
Metal vapor discharge lamp
Patent number
4,223,247
Issue date
Sep 16, 1980
U.S. Philips Corporation
Cornelis A. J. Jacobs
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Patent Grant
Device for starting and feeding a discharge lamp
Patent number
4,039,895
Issue date
Aug 2, 1977
U.S. Philips Corporation
Hubertus Mathias Jozef Chermin
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR