3774173

Information

• Patent Grant
• 3774173

• References
• Source

• Patent Number

  3,774,173

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1973
  51 years ago

• CPC

  • G11C13/041 - using photochromic storage elements
  • G02B5/23 - Photochromic filters
  • H01J29/14 - acting by discoloration

• US Classifications

  • 365 - Static information storage and retrieval
  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems
  • 385 - Optical waveguides