Matches in DBpedia 2015-10 for { ?s ?p "The Code-O-Graph is a field cipher device and identifier from the Captain Midnight radio serial. In the story line they were used by agents of the Secret Squadron, a paramilitary organization headed by Captain Midnight. In addition to their use as devices in the radio program, they were offered as radio premiums for listeners."@en }
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- Code-O-Graph comment "The Code-O-Graph is a field cipher device and identifier from the Captain Midnight radio serial. In the story line they were used by agents of the Secret Squadron, a paramilitary organization headed by Captain Midnight. In addition to their use as devices in the radio program, they were offered as radio premiums for listeners.".