Electrodeless discharge energy supply apparatus and...
Electrodeless discharge lamp apparatus with adjustable...
Electrodeless discharge lamp excited using microwave energy...
Electrodeless lamp system with orthogonally disposed...
Electrodeless lamps with externally-grounded probes and...
Electrodeless lighting apparatus
Electrodes with primary and secondary emitters for use in cross-
Electron beam injection device for an ultra-high frequency radio
Electronic tube for generating millimetric wave pulses
Electronic tube of magnetron type operating as a oscillator or a
Elongate ultraviolet light source