| http://www.w3.org/ns/prov#value | - '(1) The combination, with the bolt-work of a safe or vault-door, of a time-lock and a combination or key lock, both applied independently on a safe, vault, or other door, so as to rest against or connect with the bolt-work on said door, and provided with a device whereby the bolt-work may be retained in the unlocked position for shutting the door, and be automatically locked by the time-lock and
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