Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B63
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
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B63B
SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
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35/00
Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
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B63B35/44
Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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B63B2035/442
Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
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