3498047

Information

• Patent Grant
• 3498047

• References
• Source

• Patent Number

  3,498,047

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1970
  54 years ago

• CPC

  • G04C21/38 - Adjusting the duration of signals

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 250 - Radiant energy
  • 968 - Horology
  • D10 - Measuring, testing, or signalling instruments