Apparatus for communication; Apparatus for network communication; Apparatus for the communication of data; Apparatus for use in communications between computers; Apparatus for use in communications networks; Apparatus for use in digital communication transmission; Communication apparatus; Communication devices; Communication devices for linking computer networks; Communication instruments; Communication modems; Communication routing apparatus; Communications devices; Computer communications modems; Data communications hardware; Electronic communication apparatus; Mobile data communications apparatus; Portable communications apparatus for terrestrial vehicles; Vehicular communication apparatus; Wired communication apparatus; Wireless communication apparatus

Building materials made wholly of common metal; Building materials of metal; Construction materials of metal; Metal building materials; Metal construction materials; Metal materials for construction; Metal materials for use in anchoring

Additives, chemical, to drilling muds; chemical additives for drilling fluids; chemical additives for use in drilling; chemical products for use in drilling processes; chemicals for use in the drilling of wells; drilling muds; fluids for drilling (chemicals); fluids for rock drilling (chemicals); muds for rock drilling

Drilling fluids (lubricants)