3900757

Information

• Patent Grant
• 3900757

• References
• Source

• Patent Number

  3,900,757

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • H01J29/325 - with adjacent lines
  • H01J29/076 - characterised by the shape or distribution of beam-passing apertures
  • H01J31/206 - with three coplanar electron beams

• US Classifications

  • 313 - Electric lamp and discharge devices