TREA

by using a ciphering code in chart form

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Industry

  • CPC
  • G09C1/02
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Parent Industries

GPHYSICS G09Cryptography, education, displays G09CCODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY G09C1/00Apparatus or methods whereby a given sequence of signs

Current Industry

G09C1/02by using a ciphering code in chart form
Industries