Pin-Tumbler Locks: The outbreak of socialist revolutions across Europe in 1848 drove immigration of America. Linus Yale jr Invented the Pin tumbler lock in 1843 to serve the growing bank industry. Pin tumbler locks are difficult to pick and provide good security, As well as easy Re-keying. Linus Yale jr. used advertising to promote the benefits of his locks and expose the weakness of competeing. Pin tumbler locks are one of the most common kinds of locks today.
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