Apparatus and method for placement of a construction on the bottom of the sea.
NL2001572C2
Pontoon, has two interconnected pontoon sections, which are adjustable between locked position in which pontoon sections are superposed to each other and unlocked position in which pontoon sections are adjacent to each other
NL2001151C2
Salvage construction and method for salvaging a shipwreck or the like.
NL2000758C2
Jack with link chain for lifting or pulling heavy loads, has interlocking protrusions and spaces provided on cooperating support surfaces of chain links and chain displacement device
