Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Transformer in the supply circuit
Reexamination Certificate
2007-04-23
2011-12-13
Owens, Douglas W (Department: 2821)
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Transformer in the supply circuit
C315S225000, C315S244000, C315S312000, C315SDIG002, C315SDIG002
Reexamination Certificate
active
08076864
ABSTRACT:
A circuit arrangement for starting and operating at least one discharge lamp is provided.
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patent: 0093469 (1987-01-01), None
patent: 0189221 (1989-11-01), None
patent: 0171108 (1990-02-01), None
patent: 0024233 (2000-04-01), None
International Search Report of PCT/EP2007/053945 mailed Sep. 4, 2007.
OSRAM AG
Owens Douglas W
Pham Thai
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