1985 – Reef and Walrus Submersibles – (Soviet)
Reef Submersible. [ПР“Риф”.] Submersibles "Reef" and "Walrus". In the early 1980s, in the Experimental Design Bureau of special technical means was drafted submersible submarines for underwater works, maintenance of building and control of subsea pipelines, cable lines, waterworks, their maintenance. For this project were built two devices "Reef" and "Walrus" . In 1985 and …
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