Safety device comprising an expandable seal and mechanism to put the seal in place to prevent or block water flowing through an undesired hole or opening in a boat, barge or floating manmade construction capable of floating used for commercial transportation or pleasure craft usage, not restricted by tonnage

'barg':30 'block':18 'boat':29 'capabl':35 'commerci':40 'compris':3 'construct':34 'craft':44 'devic':2 'expand':5 'float':32,37 'flow':20 'hole':24 'manmad':33 'mechan':8 'open':26 'place':14 'pleasur':43 'prevent':16 'put':10 'restrict':47 'safeti':1 'seal':6,12 'tonnag':49 'transport':41 'undesir':23 'usag':45 'use':38 'water':19

SEA STOPPER

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