3827233

Information

• Patent Grant
• 3827233

• References
• Source

• Patent Number

  3,827,233

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1974
  50 years ago

• CPC

  • G04B19/226 - three-dimensionally shaped

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 434 - Education and demonstration
  • 968 - Horology