Patent Drawing for A. F. Knight's Golf Club - NARA - 6920299.jpg
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Patent Drawing for A. F. Knight's Golf Club NARA 6920299, 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, Patent Drawing for A. F. Knight's Golf Club
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A.F. Knight's Golf Club の特許図面 NARA 6920299、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、 A.F. Knight's Golf Clubの特許図面。
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knight's service patent law patent patent right patency patented