3564837

Information

• Patent Grant
• 3564837

• References
• Source

• Patent Number

  3,564,837

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1971
  53 years ago

• CPC

  • G04G3/027 - by combining pulse-trains of different frequencies
  • H03B21/025 - by repeated mixing in combination with division of frequency only

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology