File:Ernst Ruhmer demonstrating simple television system (1909).jpg
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Ernst_Ruhmer_demonstrating_simple_television_system_(1909).jpg (674 × 510 pixels, file size: 151 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:39, 30 January 2018 | 674 × 510 (151 KB) | commons>Thomas H. White | User created page with UploadWizard |
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