2720553

Information

• Patent Grant
• 2720553

• References
• Source

• Patent Number

  2,720,553

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1955
  69 years ago

• CPC

  • G07F17/163 - for film projection apparatus
  • H04N11/00 - Colour television systems

• US Classifications

  • 348 - Television
  • 359 - Optical: systems and elements