| Sub detection devices |
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| Undersea trackers |
LA Times Daily |
08 Jun 2021 |
| Undersea trackers |
The Washington Post |
08 Jun 2021 |
| Sub systems |
Thomas Joseph |
06 Aug 2020 |
| They make waves in the ocean |
New York Times |
15 May 2020 |
| Sub-locating devices |
Premier Sunday |
01 Dec 2019 |
| Acronyms for submarine detection systems |
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| Subs' pulse emitters |
The Washington Post Sunday |
29 Apr 2018 |
| Submarine detection systems |
Universal |
20 Feb 2017 |
| Submarine detection systems |
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| They make waves in the ocean |
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| Sub systems |
Wall Street Journal |
27 Apr 2015 |
| Searching systems |
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| Underwater detection systems |
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| Echo sounders |
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| Sub systems |
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| Finding things? |
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| Sub systems |
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| Echolocation devices |
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| Sub-detecting systems |
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| Underwater detection instruments |
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| Sub detectors |
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| Sub systems |
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| Navigational tools |
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| Naval instruments |
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| Naval instruments |
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| Submarine detection systems |
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| Underwater sound detectors |
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| Sub finders |
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| Echolocation methods |
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| Sub detectors |
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| Devices on destroyers |
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| Undersea trackers |
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| Anti-sub devices |
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| Submarine "ears." |
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| They go down low |
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| Sub-detecting devices. |
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| Sound devices. |
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