1665412

Information

• Patent Grant
• 1665412

• References
• Source

• Patent Number

  1,665,412

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1928
  96 years ago

• CPC

  • G04C21/26 - put into action by the vibrations caused by the operation of a mechanical alarm work

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology