3507551

Information

• Patent Grant
• 3507551

• References
• Source

• Patent Number

  3,507,551

• Date Filed

  Not available

• Date Issued

  Tuesday, April 21, 1970
  54 years ago

• CPC

  • H01J29/10 - Screens on or from which an image or pattern is formed, picked up, converted or stored
  • G02B5/23 - Photochromic filters
  • Y10S348/902 - Photochromic

• US Classifications

  • 359 - Optical: systems and elements
  • 313 - Electric lamp and discharge devices
  • 348 - Television