Drawing of Floating Battery - NARA - 4531641.jpg
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Drawing of Floating Battery NARA 4531641, Floating batteries, US National Archives series: Utility Patent Drawings, 1837 - 1911, Images from the National Archives and Records Administration, US National Archives location: other, Drawing of Floating Battery
commons
ja
浮電池NARA4531641の図面。米国国立公文書館シリーズ:実用特許図面。1837年～1911年、米国国立公文書館記録管理局所蔵。 位置:他、浮電池の図面
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c battery levitation floating