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1993-02-24
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1992-05-27
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GB2233796B
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1993-05-05
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1987-10-28
Circuit arrangement for operating high-pressure discharge lamp
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1991-10-16
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1993-03-17
A starting aid for an electrodeless high intensity discharge lamp
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1992-05-27
A starting aid for an electrodeless high intensity discharge lamp
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1993-02-03
Gas probe starter for an electrodeless high intensity discharge lamp
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1991-01-30
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1992-01-15
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1993-08-11
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1992-01-28
Circuit arrangement for igniting lamps
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1990-08-28
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1982-07-07
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1993-07-14
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1993-10-16
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1995-01-11
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Electronic ignition unit for high-pressure discharge lamp
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1995-05-17
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1990-10-28
Circuit arrangement for high-pressure discharge lamp
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1991-01-09
Electronic ballast circuit for gas discharge lamp
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1991-05-20
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