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Patent drawing - Drawing of Marine Compasses Public domain image
Zusammenfassung
This patent was designed by Samuel Custer.
Utility Patent Drawings
Public domain photograph of French architecture design drawing, building plan, Paris, France, free to use, no copyright restrictions image - Picryl description
Berühmte Patentzeichnungen aus dem National Archives, Washington DC
Tags
Datum
26/06/1866
Quelle
The U.S. National Archives
Copyright-info
No known copyright restrictions
