2987618

Information

• Patent Grant
• 2987618

• References
• Source

• Patent Number

  2,987,618

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1961
  64 years ago

• CPC

  • H01J49/284 - using electrostatic and magnetic sectors with simple focusing

• US Classifications

  • 250 - Radiant energy
  • 313 - Electric lamp and discharge devices