High buffer gas pressure ceramic arc tube and method and...
High buffer gas pressure ceramic arc tube and method and...
High capacity electron beam cold hearth furnace
High capacity getter pump
High capacity x-ray tube
High contrast display panel
High cri metal halide lamp with constant color throughout life
High definition colour television tube fabrication process...
High dynamic range mass spectrometer
High efficacy electrodeless high intensity discharge lamp
High efficacy electrodeless high intensity discharge lamp...
High efficiency gas filled lamp
High efficiency velocity modulation tube employing harmonic...
High efficiency winding for toroid yoke
High energy x-ray tube
High frequency amplifier
High frequency amplifier
High frequency amplifying apparatus
High frequency amplifying devices
High frequency apparatus