Image: Unterschrift von Engelbert Zaschka
Unterschrift_von_Engelbert_Zaschka.jpg (440 × 133 pixels, file size: 28 KB, MIME type: image/jpeg)
Description: Signature of Engelbert Zaschka
Title: Unterschrift von Engelbert Zaschka
Credit: http://v3.espacenet.com/publicationDetails/biblio?CC=US&NR=1779524&KC=&FT=E
Author: United States Patent and Trademark Office
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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