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AR924063
Quadruplex telegraph invented by Thomas Alva Edison (1847-1931) in 1874. It could send and receive four telegraph messages simultaneously on a single wire, two signals in each direction. Engraving.
Quadruplex telegraph invented by Thomas Alva Edison (1847-1931) in 1874. It could send and receive four telegraph messages simultaneously on a single wire, two signals in each direction. Engraving.
Unique Identifier
alb1465872
Type
Image
Purpose
Public
Size
550px × 239px
Photo Credit
Album / Art Resource, NY
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Tags
1874
19th century
AMERICA
AMERICA NORTH
AMERICA, CONTINENT
American
ARTFORM
COMMUNICATE
COMMUNICATIONS
CONTEMPORARY AGE
CONTEMPORARY DECADE
CONTEMPORARY EPOCH
CONTEMPORARY HISTORY
CONTINENT: AMERICA
DEVISER
EDISON
EDISON, THOMAS ALVA
ELECTRICAL
ENGINEER
Engineering
Engraved
Engraving
ENGRAVING.
ENGRAVINGS
ESTADOS UNIDOS DE AMERICA
ESTADOS UNIDOS USA EEUU EE. UU. EUA E. U. A.
Etching
EUA
FICTION
FOUR
History
INVENT
Invention
INVENTIONS
Inventor
INVENTOR (MALE)
KNOW-HOW
MESSAGE
NINETEENTH CENTURY
NORTEAMERICA
North America, Topography
NORTH AMERICAN
ORIGINATOR
QUADRUPLEX
Science
SCIENCES
SIMULTANEOUSLY
SINGLE
TECHNICAL
TECHNIQUE
Technology
TEHNOLOGY
TELECOMMUNICATION
TELECOMMUNICATIONS
Telegraph
TELEGRAPHIC
TELEGRAPHY
THOMAS ALVA EDISON
U. S. A.
U.S.
UNITED STATES
UNITED STATES OF AMERICA
UNITES STATES OF AMERICA USA
Wire