Patent Drawing for T. A. Edison's Electric Lighting - NARA - 6277647.jpg
en
Patent Drawing for T. A. Edison's Electric Lighting NARA 6277647, Patent drawings in the National Archives and Records Administration, US National Archives series: Utility Patent Drawings, Images from the National Archives and Records Administration, US National Archives location: other, NARA-Author with ARC, Patent Drawing for T. A. Edison's Electric Lighting
commons
ja
T.A.エジソンの電気照明用特許図面 NARA 6277647、米国国立公文書館管理局の特許図面、米国国立公文書館シリーズ: 特許図面、米国国立公文書館管理局の画像、米国国立公文書館の位置。もう1つは、NARA-Author with ARC、T.A.エジソンの電気照明用特許図面
commons_translated
patent law patent patent right patency patented