3139484

Information

• Patent Grant
• 3139484

• References
• Source

• Patent Number

  3,139,484

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1964
  60 years ago

• CPC

  • H04H20/88 - Stereophonic broadcast systems
  • F16K47/04 - for decreasing pressure or noise level , the throttle being incorporated in the closure member
  • H04N9/646 - for image enhancement
  • H04N11/146 - Decoding means therefor

• US Classifications

  • 348 - Television