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Cet album fait partie des albums
Cet album photos contient les sous-albums suivants :
Dictaphone cylinder machine.jpg - Chetvorno
Photophone transmitter 4074931746 9f996df841 b.jpg - Harryzilber
Photophone receiver 4074172975 288f2808f0 o.jpg - Harryzilber
Photophony1.jpg - Harryzilber
Early experimental non-magnetic Tape Recorder invented by the Volta Associates -Bell & Tainter -i013.jpg - Harryzilber
Charles Sumner Tainter.jpg - File Upload Bot (Magnus Manske)
Charles Sumner Tainter seated.jpg - Oaktree b