alb9046235
TELEGRAPHONE: magnetic recording tele phone invented by Valdemar Poulsen (1869-1942).
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Titre: TELEGRAPHONE: magnetic recording tele phone invented by Valdemar Poulsen (1869-1942).
Légende: Voir la traduction automatique
TELEGRAPHONE: magnetic recording tele phone invented by Valdemar Poulsen (1869-1942). He applied for a patent on 1 December 1898; and the instrument aroused great interest at the Paris Exposition of 1900. RIBBON TELEGRAPHONE: detail of thin steel ribbon mounted on pulleys. Wire telegraphone in which piano wire was used for the recording. 1904.
TELEGRAPHONE: magnetic recording tele phone invented by Valdemar Poulsen (1869-1942). He applied for a patent on 1 December 1898; and the instrument aroused great interest at the Paris Exposition of 1900. RIBBON TELEGRAPHONE: detail of thin steel ribbon mounted on pulleys. Wire telegraphone in which piano wire was used for the recording. 1904.
Crédit: Album / World History Archive
Autorisations: ? Autorisation de modèle: Non - ? Autorisation de propriété: Non
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Taille de l'image: 9151 × 6875 px | 180.0 MB
Taille d'impression: 77.5 × 58.2 cm | 3602.8 × 2706.7 in (300 dpi)
Mots clés: INSTR. MUS. PIANO • PIANO • PIANO, INSTR. MUS.
