128503 ⎘
Keeping dry foundation sites or other areas in the ground Restraining of open water
Sub-classes:Flood protection for underground air vents
#2Flood protection for underground air vents
#3Flood protection for underground air vents
#4Flood protection for underground air vents
#5Flood protection for underground air vents
#6Flood protection for underground air vents
#7Collar for marine pile repair and method of using the same
#8Apparatus for forming a protected region in a body of water and method for assembling an apparatus
#9Method of construction using sheet piling sections