2189334

Information

• Patent Grant
• 2189334

• References
• Source

• Patent Number

  2,189,334

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1940
  84 years ago

• CPC

  • G04B33/04 - Non-circular calibers

• US Classifications

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