| http://www.w3.org/ns/prov#value | - invention is an arrangement whereby different keys can be programmed to become inoperative after different periods of time.Yet another feature of the invention is the ability of the lockbox to be reprogrammed in the field.Still another feature of the invention is the ability of the lockbox to be interrogated by a user to learn the number of times the lockbox has been accessed without returning the
|
