723566

Information

• Patent Grant
• 723566

• References
• Source

• Patent Number

  723,566

• Date Filed

  Not available

• Date Issued

  Tuesday, March 24, 1903
  122 years ago

• CPC

  • G07B17/00733 - Cryptography or similar special procedures in a franking system
  • G09C3/06 - the connections being mechanical

• US Classifications

  • 380 - Cryptography
  • 101 - Printing