2513307

Information

• Patent Grant
• 2513307

• References
• Source

• Patent Number

  2,513,307

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1950
  74 years ago

• CPC

  • G09C3/00 - Typewriters for ciphering or deciphering cryptographic text

• US Classifications

  • 380 - Cryptography