G. Sittmann's Oscillating Electric Fan - NARA - 109182145.jpg
en
G. Sittmann's Oscillating Electric Fan NARA 109182145, US National Archives series: Utility Patent Drawings, Images from the National Archives and Records Administration, US National Archives location: other, G. Sittmann's Oscillating Electric Fan
commons
ja
G・シットマンの扇動電動ファンNARA109182145、米国国立公文書館シリーズ:実用特許図面、米国国立公文書館所蔵画像:他、G・シットマンの扇動電動ファン
commons_translated
electric fan oscillate