File:Tnm 12 1 39-52.pdf
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Summary
This article describes the first tests of sonar made by Langevin during world war I and how "Langevin's invention was by far the most effective device developed during the war for the hunting of submarines".
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 09:59, 5 March 2020 | (391 KB) | Bleridon (talk | contribs) | This article describes the first tests of sonar made by Langevin during world war I and how "Langevin's invention was by far the most effective device developed during the war for the hunting of submarines". |
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