3209147

Information

• Patent Grant
• 3209147

• References
• Source

• Patent Number

  3,209,147

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1965
  59 years ago

• CPC

  • H01J3/12 - Arrangements for controlling cross-section of ray or beam Arrangements for correcting aberration of beam

• US Classifications

  • 250 - Radiant energy
  • 313 - Electric lamp and discharge devices
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 850 - Scanning-probe techniques or apparatus