File:Nbs-2.jpg
Nbs-2.jpg (425 × 330 pixels, file size: 32 KB, MIME type: image/jpeg)
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Date/Time | Dimensions | User | Comment | |
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current | 08:55, 21 December 2008 | 425 × 330 (32 KB) | Coenen | {{Information |Description={{en|1=Atomic Clock NBS-2 (1960)}} |Source=http://tf.nist.gov/general/museum/nbs-2.jpg |Author=National Institute of Standards and Technology - Physics Laboratory: Time and Frequency Division |Date= |Permission= |other_versions= |
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