Polyhedral annular structures, and blanks therefor
Polymeric optical fiber
Power and ground plane structure for chip carrier
Power, ground and decoupling structure for chip carriers
Primer/membrane waterproofing system
Primerless waterproofing laminates
Process for the preparation of bitumen-polymer composition
Projection screen
Projection screen
Projection screen
Projection screen and method of making same
Protected fiber optic waveguide
Protective covering for at least one light waveguide
Protective device for protection against radiation during weldin
Radiant energy reflector and method for construction thereof
Radiation sources
Rear face reflection mirror of multilayer film for synthetic res
Rear projection screen
Recycled roofing material and method of manufacturing same
Reflection mirror for optical instrument