3894321

Information

• Patent Grant
• 3894321

• References
• Source

• Patent Number

  3,894,321

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1975
  49 years ago

• CPC

  • H01J31/201 - using a colour-selection electrode
  • H01J29/07 - Shadow masks for colour television tubes
  • H01J29/325 - with adjacent lines
  • H01J2229/0761 - Uniaxial masks having parallel slit apertures

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing
  • 313 - Electric lamp and discharge devices