Dark bronze glass nitrate free manufacturing process

Decorative air bubble formation in a glassware article

Device and method for preparing multi-fiber optical cables for b

Device for the manufacture of a fleece of inorganic and organic

Device for the manufacture of glass filaments

Devitrification resistant flame hydrolysis process

Digitally controlled tube build-up compensator for a glass fiber

Directing glass forming constituents against a lateral surface p

Discrete glass sheet cutting

Distributor for optical signals

Double crucible method of fabricating optical fibers

Double crucible method of optical fiber manufacture

Double crucible system for the production of light conducting fi

Drain bushing

Drain bushing

Drain bushing

Drain bushing

Drawing dielectric optical waveguides

Drawing optical waveguides by heating with laser radiation