3609959

Information

• Patent Grant
• 3609959

• References
• Source

• Patent Number

  3,609,959

• Date Filed

  Not available

• Date Issued

  Tuesday, October 5, 1971
  53 years ago

• CPC

  • G04G3/027 - by combining pulse-trains of different frequencies
  • G04F5/00 - Apparatus for producing preselected time intervals for use as timing standards
  • H03K23/002 - using semiconductor devices

• US Classifications

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