3669352

Information

• Patent Grant
• 3669352

• References
• Source

• Patent Number

  3,669,352

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1972
  52 years ago

• CPC

  • G04C23/347 - some operations being overridden

• US Classifications

  • 239 - Fluid sprinkling, spraying, and diffusing
  • 250 - Radiant energy
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology