3458991

Information

• Patent Grant
• 3458991

• References
• Source

• Patent Number

  3,458,991

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1969
  55 years ago

• CPC

  • G04F1/04 - by movement or acceleration due to gravity

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 092 - Expansible chamber devices
  • 968 - Horology