990697

Information

• Patent Grant
• 990697

• References
• Source

• Patent Number

  990,697

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1911
  113 years ago

• CPC

  • G04B3/08 - by parts of the cases

• US Classifications

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