Remove card costco benadryl Invensys, which was once part of an elite band of diversified leviathans including Hanson, Williams Holdings, and “guns to buns” group Tomkins has slimmed down â not least after selling its lucrative rail business to Siemens for £1.7bn last year. The group has also been in talks during the last 12 months with Emerson about the possible sale of its US-based Foxboro brand â another key part of the group – but this came to nothing at the time.