AU108026B2 - Improvements in sources of light comprising a high-pressure mercury vapour electric discharge and an incandescent filament in series with it
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Improvements in sources of light comprising a high-pressure mercury vapour electric discharge and an incandescent filament in series with it
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General Electric Co
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General Electric Co
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Publication of AU28839ApublicationCriticalpatent/AU28839A/en
Publication of AU108026B2publicationCriticalpatent/AU108026B2/en
AU288/39A1939-01-24Improvements in sources of light comprising a high-pressure mercury vapour electric discharge and an incandescent filament in series with it
ExpiredAU108026B2
(en)