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Thus far, our Everyday IP blog series has covered some of
the most common but essential items used by people all over the
world - socks and toothbrushes - and tied them to major
developments in the history of Intellectual Property. Now, we turn
to another thing that we likely take for granted daily, but without
which we would not exist in any way as we do today: indoor
plumbing.
Answering the question, When was indoor plumbing
invented? is somewhat complicated. It involves not one single