Device for transfer of air in one or the other direction between
Device with passage for liquid
Diffuser unit for air conditioning system
Diverter valve with multiple valve seat rings
Door vent
Double cone for generation of a pressure difference
Drag reduction in pipe flow using microbubbles and acoustic...
Drain arrangement for photoresist coating apparatus
Drip irrigation system
Dual rate automatic anti-oxidation replenisher control
Dynamic annulus heart valve and reconstruction ring
Dynamic confinement and contactless docking