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"Electrical Transmission of Pictures", 
Electrical World, 14 June 1924
ATT Electrical World June 1924a_edited.j
ATT Electrical World June 1924b.jpg
H.W. SECOR, "Telephone Wires Carry Pictures",
Science and Invention, July 1924
(repris également dans H.W. SECOR and J.H. KRAUS,
All About Television,
Experimenter Publishing Company, 1927)
Science and Invention July 1924a.jpg
Science and Invention July 1924b.jpg
"Telephoning our press photographs"
Scientific American, August 1924, p. 87 et p.139
Sc American August 1924_edited.jpg
Sc American August 1924b.jpg
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