Patent Drawing for J. B. Halbert's Ratchet Wrench - NARA - 6277694.jpg
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Patent Drawing for J. B. Halbert's Ratchet Wrench NARA 6277694, 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 J. B. Halbert's Ratchet Wrench
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ja
J・B・ハルバートのラチェットレンチNARA 6277694の特許図面、米国国立公文書館管理局特許図面、米国国立公文書館管理局画像、米国国立公文書館の位置、J・B・ハルバートのラチェットレンチのための特許図面
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