Patent drawing - Drawing of Improvement in Breech Loading Firearms Public domain  image

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Patent drawing - Drawing of Improvement in Breech Loading Firearms Public domain image

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Zusammenfassung

Utility Patent Drawings

Public domain photograph of a patent diagram drawings, free to use, no copyright restrictions image - Picryl description

Berühmte Patentzeichnungen aus dem National Archives, Washington DC

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Datum

25/03/1856
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Quelle

The U.S. National Archives
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improvement
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