Stabil Zsiráf háttér lamp of warren de la rue Részleges jön fejfájás
Warren de la Rue, British astronomer - Stock Image - C003/6733 - Science Photo Library
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Warren De la Rue - Wikiwand
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About the invention of the light bulb - and who it really was SEGULA GmbH
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Warren de la Rue, British astronomer - Stock Image - H404/0357 - Science Photo Library
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Network of Incubators and Innovators in Nigeria - NINE - Historical Innovations: The Electric light bulb. . Thanks to inventors Humphry Davy, Warren de la Rue, Joseph Wilson Swan and Thomas Alva