3873868

Information

• Patent Grant
• 3873868

• References
• Source

• Patent Number

  3,873,868

• Date Filed

  Not available

• Date Issued

  Tuesday, March 25, 1975
  49 years ago

• CPC

  • H01J29/898 - Spectral filters
  • H01J29/28 - with protective, conductive or reflective layers
  • H01J29/87 - Arrangements for preventing or limiting effects of implosion of vessels or containers
  • H01J2229/875 - Means substantially covering the output face

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 348 - Television