Robert Barron (locksmith)

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Robert Barron was an English locksmith notable for his invention of the double–acting tumbler lock in 1778.[1][2]


  1. ^ "The history of locks". London Locksmiths Ltd. Retrieved 8 November 2011. 
  2. ^ Bellis, Mary (8 November 2011). "The History of Locks". Inventors. Retrieved 8 November 2011.