3663857

Information

• Patent Grant
• 3663857

• References
• Source

• Patent Number

  3,663,857

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • H01J1/316 - having an electric field parallel to the surface
  • H01J3/021 - Electron guns using a field emission, photo emission, or secondary emission electron source
  • G05B2219/23203 - Curve represents analog value, tv scan

• US Classifications

  • 313 - Electric lamp and discharge devices