Deck platform extension for boats
Deck section loading
Design and construction of hulls
Device for attaching propulsion units to a tabular iceberg
Device for severing underwater cables
Dinghy with mast well
Directional control mechanism for a trolling motor
Diver flotation apparatus
Diver's buoyant caddy
Dory
Drive installation in boats
Drive position signalling apparatus
Dual hull water bicycle
Dynamic ballast and stabilization system