Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B63
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
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B63H
MARINE PROPULSION OR STEERING
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25/00
Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
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B63H25/382
movable otherwise than for steering purposes; Changing geometry
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B63H2025/384
with means for retracting or lifting
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