TREA

CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY

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Industry

  • CPC
  • G09C

Parent Industries

GPHYSICS G09Cryptography, education, displays

Current Industry

G09CCODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY

Sub Industries

G09C1/00Apparatus or methods whereby a given sequence of signs G09C3/00Typewriters for ciphering or deciphering cryptographic text G09C5/00Ciphering apparatus or methods not provided for in the preceding groups
Industries