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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23/00
Equipment for handling lifeboats or the like
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B63B23/30
Devices for guiding boats to water surface
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B63B23/32
Rigid guides, e.g. having arms pivoted near waterline
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