Machines for positioning roof supports in a tunnel

Manhole liner including felt impregnated vinyl

Manhole liner including felt impregnated vinyl

Manipulator transporter

Manufacture of articles

Method and a device for guiding a concrete feeding hose in conne

Method and apparatus for drilling rig construction and mobilizat

Method and apparatus for inflating and curing a resin impregnate

Method and apparatus for installation of drainage field

Method and apparatus for locating a service pipe outlet transver

Method and apparatus for placing concrete under water

Method and apparatus for protection against coastal erosion

Method and apparatus for removing old pile

Method and apparatus for underwater reclamation

Method for depositing material on the ocean bed and apparatus fo

Method for installation and alignment of a series of posts

Method for making service connections to polyethylene pipe

Method for rapidly melting an iceberg

Method for the repair of existing manholes using elastomeric mat

Method for the repair of existing manholes using elastomeric mat