File:Quecksilber Thermoblinker Zeichnung.png

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Deutsch: Quecksilber Thermoblinker, Prinzip erklärende Zeichnung.
Date 23.10.1931
Source Patent DE536467C
Author Vereinigte Eisenbahn Signalwerke GmbH

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Public domain This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
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current10:36, 30 June 2022Thumbnail for version as of 10:36, 30 June 2022930 × 850 (396 KB)Devon Brunner (talk | contribs)Uploaded while editing "Benutzer:Devon Brunner/Quecksilber Thermoblinker" on de.wikipedia.org

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