2184724

Information

• Patent Grant
• 2184724

• References
• Source

• Patent Number

  2,184,724

• Date Filed

  Not available

• Date Issued

  Tuesday, December 26, 1939
  84 years ago

• CPC

  • G04C21/14 - Electro-acoustic time announcement

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 200 - Electricity: circuit makers and breakers
  • 968 - Horology