2917892

Information

• Patent Grant
• 2917892

• References
• Source

• Patent Number

  2,917,892

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1959
  65 years ago

• CPC

  • G04F3/022 - using mechanical signalling device

• US Classifications

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