Production of micro glass fibers

Production of mineral wool

Production of one-piece stemware from glass, etc.

Production of optical glass fibers

Production of organic fibers with inorganic cores

Production of semi-reflecting glass products

Production of translucent sheet glass by grinding

Production process of machinable ceramics

Production process of synthetic quartz glass

Programmable speed controller

Programmably controlled fiber glass strand feeders and improved

Protection device for basalt drain bushings

Protective coating for refractory metal substrates

Proton exchange method of forming waveguides in LiNbO.sub.3

Providing reinforced alkaline earth aluminosilicate glasses

Pull-roll assembly latching mechanism

Pulsed fuel-oxygen burner and method for rotatable workpieces

Pulsed pressure method for vacuum refining of glassy materials

Pultrusion process for fiber-reinforced composites

Pulverulent borosilicate composition and a method of making a ce