When Did Key Cards Come Out? [Solved]

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When Did Key Cards Come Out? [Solved]

But when a high-profile lawsuit in the ’70s cast dispersion on hotel security, hoteliers turned to the keycard. Invented in 1975 by a Norwegian named Tor Sornes, the first model was actually a plastic card containing 32 holes, which could be formed into unique patterns for each individual guest.18 Feb 2014

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