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History of the KeyBox


Accessible keys

The first key lockbox was invented over 55 years ago by Delbert Williams, Supra’s founder.  Delbert, a real estate professional, was tired of chasing down keys in order to show homes to clients.  He crafted a keybox from a Yale® bicycle lock and a sand-cast aluminum container.  Although very primitive, this lockbox served its purpose well – eliminating the need for agents to search for listing keys in order to get into houses for sale.  By providing this instant one-key access, the first Supra keybox was born. 

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