Reinforced concrete boat hull and method of construction
Reinforced hull for a water craft
Releasable airborne buoy
Releasable boat anchor
Releasable hook
Release device for emergency sea rescue apparatus
Release louvers
Remote mooring pulley system
Remote-controlled submersible drogue
Remotely controlled assembling and interlocking device
Removable device comprising collapsible floats, which is...
Renewable energy vessel factory-ship
Replaceable trolling motor transducer
Rescue launcher
Retractable bimini top device
Retractable boat line
Retractable boom assembly in apparatus for towing an...
Retractable lift ring
Retractable mooring line device
Retractable step with secure locking mechanism