SOUND PIPE

machines for installation of flexible lining materials in pipelines, sewers, and passageways, namely, cranes and lifts

electromagnets, ultrasonar, and sonar for initiating and curing of synthetic resins and resinous materials

lights and lighting fixtures for initiating and curing of synthetic resins and resinous materials

flexible tubes consisting of any combination of the following - curable synthetic resins, fiber reinforcements, mixtures of resinous materials and fibrous materials for use as insulated rigid pipes, pipe linings, or cured pipe for sewers and passageways

installation of flexible linings for pipelines, sewers, and passageways