Refractometer and method for measuring refractive index

Refractometer cell for both absolute and differential...

Refractometer cell with integral lens

Refractometer for distinguishing sugar-sweetened beverages from

Refractometer for fluids

Refractometer for measuring the refractive index of a liquid

Refractometer for monitoring water content in fluids

Refractometer readout system

Refractometer subassembly method and apparatus

Refractometer using the limiting angle method

Refractometer with blazed bragg gratings

Refractometer with deflecting element

Refractometric densitometer

Refractometric device

Remote probing apparatus and method

Reticle calibrated diameter gauge

Retroreflection focusing schlieren system

Rewritable display having a dielectric spacing layer

RF switch

Ring laser having elastic wave bias