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signals at sea

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signals at sea

signals at sea   Quick reference

The Oxford Companion to Ships and the Sea (2 ed.)

Reference type:
Subject Reference
Current Version:
2007
Subject:
History, Social sciences
Length:
981 words
can be broadly divided historically into day signals, night signals, wireless telegraphy, and modern radio communications, and a brief history of the development of each can be found ... More

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