Patent Drawing for a Staple Machine - NARA - 594426.jpg
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Patent Drawing for a Staple Machine NARA 594426, United States Patent and Trademark Office documents, US National Archives series: Patent Case Files, Images from the National Archives and Records Administration, US National Archives location: other, Patent Drawing for a Staple Machine
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ステイプルマシンの特許図面 NARA 594426、米国特許商標庁文書、米国国立公文書館シリーズ:特許事件簿、米国国立公文書記録管理局の画像、米国国立公文書館の位置:もう1つ、ステイプルマシンの特許図面
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patent law estoppel staple adding machine machine code patent patent right patency patented stamping machine