3879747

Information

• Patent Grant
• 3879747

• References
• Source

• Patent Number

  3,879,747

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1975
  49 years ago

• CPC

  • H03J1/047 - using electronic means
  • H03J3/185 - with varactors
  • H03J5/0227 - using a counter

• US Classifications

  • 348 - Television
  • 334 - Tuners
  • 455 - Telecommunications