Building and construction materials and elements, not of metal, namely, concrete slabs with voids and cavities; non-metallic structural elements for use in building, namely, concrete foundations with voids and cavities; construction elements of plastic, namely, plastic void formers in the nature of molds for forming cavities in concrete during construction; building materials of plastics material, namely, concrete shapers being void formers in the nature of molds for forming cavities in concr...

Security and/or surveillance cameras not intended for use in fire alarm systems