73760293
Oct 28, 1988
Jul 25, 1989
DREDGES UTILIZING A PUMP AND AN AGITATOR FOR REMOVING ACCUMULATED SEDIMENTATION FROM THE BOTTOM OF WATER AREAS, SUCH AS LAKES, RIVERS, STREAMS, CANALS, FISH HATCHERIES AND INDUSTRIAL SETTLING BASINS BY AGITATING AND PUMPING THE SAME TOGETHER WITH LARGE VOLUMES OF WATER THROUGH A PIPELINE AND COMPONENT PARTS THEREFOR
Machinery