PLASMA

[Seals of metal for pipes and other pressurized systems; seals of metal for preventing leakage of fluids; discrete sealing elements of metal, namely, metal seals; discrete sealing elements of metal, namely, metal seals, for stopping leakage from pipes and other pressurized systems; discrete elements, namely, metal seals, for temporary blockage of leakage from pipeline systems and other pressurized systems]

[Electronic underground pipe locating and testing apparatus, instruments and units in the nature of pipe and seal defect detectors for detecting defects; pipeline inspection tools in the nature of electronic pipe and seal defect detectors for detecting defects; pipeline inspection tools incorporating ultrasonic sensors, all for use in pipes and other pressurized systems, namely, fluid filled ducts, oil and gas ducts, water ducts, and effluent ducts]

Sealants for pipes and other pressurized systems manufactured from polymer, rubber, plastic and other non metal materials; discrete sealing elements made from polymer, rubber, plastic and other non-metal materials, namely, seals, for stopping leakage from seals, pipes and other pressurized systems; plastic materials in the nature of seals for use in civil and mechanical engineering; polymers in the nature of seals for use in civil and mechanical engineering[; discrete sealing elements made of polymer, rubber, plastic, and other non metal materials, namely, seals containing magnetic, radioactive, fluorescent, piezoelectric, colored, luminescent, thermal luminescent, infra-red, ultra-violet, electromagnetic, temperature sensitive, chemical or biological labels, tags or markers for use to seal and detect leaks in pipes and other pressurized systems, namely, fluid filled ducts, oil and gas ducts, water ducts, and effluent ducts]