FIELD: lifesaving appliances. SUBSTANCE: housing of hermetic chamber with hatches is positioned horizontally in water due to ballast system in its center. Floating members are secured to hermetic chamber over its edges by means of rope and winch. EFFECT: enhanced reliability. 2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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RU2135389C1 |
