| http://www.w3.org/ns/prov#value | - In a preferred embodiment, a lock system including a lock and a key, including: a lock housing; a rotatable member disposed in the housing, rotation of which rotatable member selectively effects locking and unlocking of the lock; blocking apparatus operatively connected to the rotatable member to prevent unlocking of the lock except upon receipt of an electrical unlocking signal; key apparatus hav
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