Category:Ernst Ruhmer
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German physicist (1878–1913) | |||||
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Date of birth | 15 December 1878 Berlin, Germany | ||||
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Date of death | 8 April 1913 Berlin | ||||
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Media in category "Ernst Ruhmer"
The following 3 files are in this category, out of 3 total.
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Ernst Ruhmer demonstrating simple television system (1909).jpg 674 × 510; 151 KB
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Ernst Ruhmer radiotelephone transmitter circa 1905.jpg 664 × 498; 172 KB
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Ernst Ruhmer, Technical World cover (1905).jpg 332 × 503; 131 KB