1945989

Information

• Patent Grant
• 1945989

• References
• Source

• Patent Number

  1,945,989

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1934
  91 years ago

• CPC

  • G04C13/0418 - by using devices similar to slave-clocks

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology