ELLIOT(1875) p223 Fig.19 - Diagram illustrating revolving intermittent gas-lights.jpg
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ELLIOT(1875) p223 Fig.19 Diagram illustrating revolving intermittent gas lights, European Light-House Systems (1875) by ELLIOT, Uploaded by the British Library, Images from the British Library Mechanical Curator collection, Images from the British Library
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ELLIOT(1875) p223 Fig.19 断続的なガス灯の回転する様子を示す図。ヨーロッパ光住宅システム(1875) 。大英図書館がアップロード。大英図書館機械学蔵の画像。大英図書館蔵
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intermittent gas system