That little gear-and-widget ad operation in the back room of the maintenance manual shop has grown to be blended with others into the largest independent advertising agency in the world, focused on serving business-to-business clients.

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Once LED lighting systems are networked, you can do a lot of things with them such as detect motion, predict maintenance or figure out how many people are in a room.

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Tests carried out in 2004 on the boards of this room dating back to the 1830s revealed the original surface beneath grime, discolored varnish and the repainting done by maintenance staff over fifty years ago.

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