Radio frequency ion guide

Radio frequency ion source

Radio frequency ion source

Radio frequency output circuits and output windows

Radio locating equipment

Radio reception apparatus

Radio-frequency electron accelerator

Radioactive starting aids for electrodeless light sources

Radiographic elements and binders

Radiographic intensifying screens

Radiographic system with xerographic printing

Rail tie

Railway tie

Random particle impact microscope

Rapid gas-phase isotopic labeling for enhanced detection of...

Rapid response mass spectrometer system

Rapid start fluorescent lamp with a bimetal electrode...

Rapid warm-up ceramic metal halide lamp

Rare earth halide light source with enhanced red emission

Rare gas discharge lamp with an external electrode