High Quality Content by WIKIPEDIA articles! Padlocks are portable locks used to protect against theft, vandalism, sabotage, espionage, unauthorized use, and harm. They are designed to protect against some degree of forced and surreptitious entry. They are used in jails, school's lockers and lots of other things.The earliest padlocks used in America, sometimes called “smokehouse” locks, were formed from wrought iron sheet and employed simple lever and ward mechanisms.

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