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gptkbp:instanceOf
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crypt
cryptographic device
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gptkbp:alsoKnownAs
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gptkb:Type_B_Cipher_Machine
97-shiki O-bun In-ji-ki
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gptkbp:brokenBy
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gptkb:United_States
gptkb:Frank_Rowlett
gptkb:U.S._Army_Signal_Intelligence_Service
gptkb:William_Friedman
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gptkbp:countryOfOrigin
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gptkb:Japan
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gptkbp:decipheredBy
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Magic project
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gptkbp:developedBy
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Japanese government
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gptkbp:firstBroken
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1940
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https://www.w3.org/2000/01/rdf-schema#label
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PURPLE cipher machine
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gptkbp:influenced
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subsequent Japanese cipher machines
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gptkbp:influencedBy
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gptkb:Enigma_machine
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gptkbp:introducedIn
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1937
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gptkbp:locationOfCapturedMachine
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None captured by Allies
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gptkbp:notableFor
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breaking led to intelligence advantage for Allies
used for diplomatic communications
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gptkbp:operatedBy
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Japanese embassy staff
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gptkbp:relatedTo
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gptkb:Enigma_machine
gptkb:Red_cipher_machine
gptkb:Magic_(cryptanalysis)
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gptkbp:replacedBy
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gptkb:Red_cipher_machine
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gptkbp:supportsAlgorithm
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electromechanical
polyalphabetic substitution
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gptkbp:usedBy
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gptkb:Imperial_Japanese_Navy
gptkb:Japanese_Foreign_Office
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gptkbp:usedDuring
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gptkb:World_War_II
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gptkbp:bfsParent
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gptkb:CORAL_cipher_machine
gptkb:JADE_cipher_machine
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gptkbp:bfsLayer
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7
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