Patent drawing - for R. J. Spalding's Flying Machine 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
Patent
Maschine
Punkt 1
Patentanmeldung
Patente
19. Jahrhundert
Patentzeichnungen
alte Patente
hohe Auflösung
ultrahohe Auflösung
Gebrauchsmusterzeichnungen
Vintage-Illustration
kunst poster
Erfindungen
kostenlose Kunstplakate
uns Nationalarchive
Datum
05/03/1889
in sammlungen
Quelle
The U.S. National Archives
Link
Copyright-info
No known copyright restrictions