Method for transporting viscous crude oils

Method for two stage in-line acid mixing

Method for water hammerless opening of fluid passage, and...

Method for wide range gas flow system with real time flow measur

Method in operating a cavern for gas

Method of and apparatus for control of saftey valves

Method of and apparatus for controlling material flow

Method of and apparatus for controlling turbulence in boundary l

Method of and apparatus for manufacturing of shaped workpieces f

Method of and apparatus for monitoring the surface level of mate

Method of and apparatus for pressure buffering all leak paths of

Method of and apparatus for sealing a leak in a pipeline

Method of and arrangement for feeding pressure fluid in pulses

Method of and device for cleaning hollow spaces in double seat v

Method of and device for controlling solenoid operated flow cont

Method of and device for repairing slide-valve spindles

Method of assembling electromagnetically actuated disc-type valv

Method of attaching a valve disc to a drive shaft

Method of attaching supply conduit to a solenoid operated valve

Method of blocking a pipe and device therefor