Mellor traffic light signal head Designer (Person) Mellor, David Manufacturer Plessey Manufactured for Somerset County Council Date 1990 - 1998 (circa)
Terrain Hydromax siphonic roof drainage system Designer (Person) Unknown Manufacturer Polypipe Terrain Manufactured for Hydromax Incorporated Date 2012
Terrain Fuze gravity drainage pipe with electrofusion joint Designer (Person) Unknown Manufacturer Polypipe Terrain Date 2012