Results 301 to 310 of about 20,548 (312)

Telegraphy and telephony [PDF]

Journal of the Institution of Electrical Engineers, 1929
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Visual Telegraphy

Science, 1880
openaire   +2 more sources

A physical phenomenon and its applications to telegraphy, telephony, etc.

, 1923
A. Johnsen, K. Rahbek
semanticscholar   +1 more source

Telephony and telegraphy

Journal of the Institution of Electrical Engineers - Part I: General, 1939
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The Principles of Electric Wave Telegraphy and Telephony

Nature
M. S.
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Wireless Telegraphy

Science, 1900
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The earliest telegraphy [PDF]

Notes and Queries, 1911
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(1) Wireless Telegraphy and Telephony without Wires (2) A Text-book of Physics (3) Medizinische Physik (4) Principles of Thermodynamics

Nature

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On duplex telegraphy

Journal of the Society of Telegraph Engineers, 1876
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Telegraphy and telephony committee

Journal of the American Institute of Electrical Engineers, 1921
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