Sonoboya: Perbedaan antara revisi
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Rescuing 2 sources and tagging 0 as dead.) #IABot (v2.0.9.4 |
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Baris 31:
* [https://web.archive.org/web/20080627130703/http://www.sonobuoytechsystems.com/products.htm Sparton Sonobuoys]
* [http://www.ultra-ms.com/ Ultra Electronics - Maritime Systems] {{Webarchive|url=https://web.archive.org/web/20130719001523/http://ultra-ms.com/ |date=2013-07-19 }}
* [http://www.ultra-ussi.com/ Ultra Electronics - USSI] {{Webarchive|url=https://web.archive.org/web/20100412150556/http://www.ultra-ussi.com/ |date=2010-04-12 }}
* [http://www.ultra-sonar.com/ Ultra Electronics - Sonar Systems] {{Webarchive|url=https://web.archive.org/web/20171214015428/http://www.ultra-sonar.com/ |date=2017-12-14 }}
* [https://www.ultra-fei.com/index.php?page=receivers Ultra Electronics - Flightline Systems] {{Webarchive|url=https://web.archive.org/web/20110717152808/https://www.ultra-fei.com/index.php?page=receivers |date=2011-07-17 }}
* [http://www.sonobuoytechsystems.com/ Sonobuoy TechSystems]
* [http://www.fas.org/programs/ssp/man/uswpns/air/asw/air_antisubwar.html Early sonobuoy development via NDRC]
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