Patent Drawing of Engine - Drawing of Hand Grenade Public domain image
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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Tags
Hand
Granate
Unterschrift
Handgranate
wf Ketchum
Patentanmeldung
Patente
19. Jahrhundert
Patentzeichnungen
alte Patente
Gebrauchsmusterzeichnungen
Erfindungen
uns Nationalarchive
Datum
20/08/1861
in sammlungen
Quelle
The U.S. National Archives
Link
Copyright-info
No known copyright restrictions