Hydrogen/halogen reactor system for metal halogen batteries
Hydrogen/hydrogen peroxide fuel cell
Hydrogen/oxygen fuel cell with control ensuring prevailing...
Hydrometallurgical method for recovering metal materials...
Hydrometallurgical process for recovering in pure metal form...
Hydrometer attachment device for batteries
Hydrometer for electric accumulators
Hydronic cooling of particle accelerator window
Hydrophilic microporous film
Hydrophilic polymers and their use in electrochemical cells
Hydrophilized anode for a direct liquid fuel cell
Hydrophobic catalyst layer for polymer electrolyte fuel cell...
Hydrophobic, erodible synthetic resin composition for...
Hydrophone streamer cable acoustic decoupler
Hydropneumatic accumulator
Hydrorefined transformer oil and process of manufacture
Hydrostatic pump switch assembly
Hyperboloid electrical contact
Hyperconceivant electron discharge devices
Hyperfrequency coaxial inverting relay