F21K 9/27

Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes

Edits on 16 Mar, 2022

"Entity importer update"

edited on 16 Mar, 2022

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Edits on 5 Mar, 2022

"update inverses"

edited on 5 Mar, 2022

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created this topic on 5 Mar, 2022

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Description (+127 characters)

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Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes

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