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Zusammenfassung
Gebrauchspatentzeichnungen
Berühmte Patentzeichnungen aus dem National Archives, Washington DC
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Tags
Patente
Gifathon
Punkt 1
Stiefel
Patentanmeldung
Patentzeichnungen
alte Patente
Gebrauchsmusterzeichnungen
Erfindungen
Datum
1867
in sammlungen
Quelle
The U.S. National Archives
Link
Copyright-info
No known copyright restrictions