About 1 Trademarks found that are filed by the law firm Ralph W Locher

valves being parts of central heating machines

metal tube and pipe connectors for central heating, metal fittings for steam, pressurized air, water and gas conduits, and metal pipe and conduit fittings for central heating technology

pipe and conduit joints of non-metallic materials for central heating, fittings of non-metallic materials for steam, pressurized air, water and gas conduits, and pipe and conduit fittings of non-metallic materials for central heating technology