Home > Term: self-contained portable electric lamps
self-contained portable electric lamps
Electric lamps that are operated by an electric battery; designed to be carried about by the user of the lamp.
- Szófaj: noun
- Ipar/Tárgykör: Mining
- Kategória: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
