Method for increasing flow rate of river to prevent flood, involves sucking water by pumping system in flow direction, and discharging water on water-flowing off side with increased discharge rate over nozzles
DE3539653A1
Working scaffold which can be supported in the window region of building walls
US3870452A
Apparatus for the production of an article from thermoplastic synthetic plastic, using blowing, injection and blowing or foil blowing process
GB191001401A
Improvements to Sectional Domestic Heating Stoves.
