1423805

Information

• Patent Grant
• 1423805

• References
• Source

• Patent Number

  1,423,805

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1922
  102 years ago

• CPC

  • G07C1/26 - Pigeon-timing or like equipment

• US Classifications

  • 346 - Recorders