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Zusammenfassung
Dies ist eine US-Patentzeichnung und daher nicht urheberrechtlich geschützt. Es dient zur Illustration des Artikels über Sears v. Stiffel, Der Patentinhaber ist Des. 180.251. Abrufbar unter [1] via Internet Explorer per 31. Dezember 2008. Lizenzierung:
Tags
Datum
2016
Quelle
USPTO
Link
Copyright-info
public domain