3159712

Information

• Patent Grant
• 3159712

• References
• Source

• Patent Number

  3,159,712

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1964
  60 years ago

• CPC

  • H04L9/38 - Encryption being effected by mechanical apparatus

• US Classifications

  • 380 - Cryptography