128218 ⎘
Barrages or weirs; Layout, construction, methods of, or devices for, making same
Sub-classes:Self-positioning system and self-positioning identification method of deepwater underwater robot of irregular dam surface of reservoir
#2SELF-ADHERING COMPRESSIBLE CONTAINMENT BERM DEVICES
#3Rapid deployment flood barrier
#4Berm or levee expansion system and method
#5Flood protection barrier system and method
#6Intelligent hydroelectric dam with power storage
#7Bottom boom
#8Floor water barrier device