Misters Butcher, Baker, Carpenter and Plumber are currently attending an annual convention. Nobody is currently, nor ever has been in the same profession as their name and no-one has had the same profession twice. Charlie has never been a carpenter and Mr. Butcher is now a plumber. Dave used to be a butcher, whereas Mr. Brian Baker never has. Mr. Plumber is not called Eddie and Mr. Carpenter did not used to be a butcher. Can you determine the full names of each of the attendees, along with their current and previous profession?
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