3422217

Information

• Patent Grant
• 3422217

• References
• Source

• Patent Number

  3,422,217

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1969
  55 years ago

• CPC

  • H04N9/647 - I.F amplifiers
  • H04N5/57 - Control of contrast or brightness

• US Classifications

  • 348 - Television