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October 31, 2020
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The development of the acoustic transducer that converted converting electrical energy to sound waves enabled the rapid advances in SONAR design and technology during the last years of world war 1 (jan 1, 1916 – nov 11, 1918)

Added to timeline:

8 Nov 2018
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75
Development of sonar Technology

Date:

jan 1, 1916
nov 11, 1918
~ 2 years and 10 months
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