F21L 4/005
Electric lighting devices with self-contained electric batteries or cells {the device being a pocket lamp }
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Edits on 5 Mar, 2022
Golden AI
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Infobox (+4 properties)
Description (+107 characters)
F21L 4/005
Electric lighting devices with self-contained electric batteries or cells {the device being a pocket lamp }
Infobox
Classification Type
Parent classification
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