Telegraph
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Changed: 1c1
A telegraph is a machinery for
telegraphy
.
A
telegraph
is a machinery for
telegraphy
.
Changed: 3c3
Morse code
,
Samuel Morse
.
Morse code
,
Samuel Morse
.
A
telegraph
is a machinery for
telegraphy
. See
optical telegraph
,
electrical telegraph
,
Morse code
,
Samuel Morse
.