A method and apparatus to turn on an electric device inside...

A method and arrangement for rehabilitation of a ballast bed...

A method and device for cleaning the ties of railroad tracks

A method and device for controlling drilling fluid pressure

A method and device for establishing an underground well

A method and device for fluid displacement

A method and device for making lateral openings out of a...

A method and device for separation of a fluid, in particular...

A method and downhole tool actuator

A method and installation for constructing an expressway,...

A method and machine for consolidation of ballast of a track

A method and machine for tamping a track

A method and machine for the lowering of a track.

A method and means for making an embankment

A method and structure to alleviate the effect of frost...

A method and system for connecting pipe to a top drive motor

A method and system for controlling an excavating apparatus

A method and system for facilitating assembly of a drilling rig

A method and system for hot asphalt recycling

A method and system for installing geothermal heat...