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Original Text (Annotation: EAW013540 / 2016351)

' WW2 British Aero Components Ltd., Brico Works, Holbrook Lane, Coventry, is a subsidiary of The British Piston Ring Co. Ltd., and manufactures hollow aircraft valves. It produces sodium-cooled valves under licence from the Eaton Manufacturing Co., U.S.A., the patentees, and holds, with the exception of licences previously granted to certain aero-motor builders, the remaining authority for the manufacturing rights. The plant includes complete equipment for stelliting and nitriding and for the sodium filling. '