2947868

Information

• Patent Grant
• 2947868

• References
• Source

• Patent Number

  2,947,868

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1960
  64 years ago

• CPC

  • H01J49/322 - with a magnetic sector of 90 degrees

• US Classifications

  • 250 - Radiant energy
  • 313 - Electric lamp and discharge devices
  • 850 - Scanning-probe techniques or apparatus