File:Johann Philipp Reis telephone.jpg

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Description Johann Philipp Reis telephone
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current14:35, 4 November 2007Thumbnail for version as of 14:35, 4 November 20072,477 × 1,548 (755 KB)Tex23~commonswiki{{Information |Description=Johann Philipp Reis telephone |Source= |Date= |Author= |Permission= |other_versions= }}

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