Land drainage system
Landfill site with leachate collection
Large module elevated fabrication method
Layered filter mat of coarse and fine fibres needled and...
Leaching chamber with inward flaring sidewall perforations
Leaching chamber with perforated web sidewall
Leaching field construction
Leaching or drainage gallery with increased surface area
Leaching system conduit
Leaching system conduit with high rigidity joint
Leg and guide construction for use in jack-up barges
Leg load distribution and locking arrangement for jack-up...
Lenson energy dissipator for shorewalls
Liftable and collapsible barrage
Lifting apparatus
Lifting device for raising, lowering and suspending heavy loads
Lip-type sealing system for a removable bottom founded...
Liquid and flood water barrier wall forming apparatus
Liquid barrier assembly
Liquid containment/diversion dike