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There is a page named "File:Braunschweig PTB-Atomuhr CS 4 (2012).jpg" on Wikipedia
wikipedia. 2012-12-08 16:53 Brunswyk 1333×2258× (441598 bytes) {{Information |Beschreibung =[[Atomuhr]]: Ehemalige [[Caesium]]-Atomuhr „CS 4“ der...(1,333 × 2,258 (431 KB)) - 12:07, 18 December 2023
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