3821554

Information

• Patent Grant
• 3821554

• References
• Source

• Patent Number

  3,821,554

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • H01J37/09 - Diaphragms Shields associated with electron or ion-optical arrangements Compensation of disturbing fields
  • H01F6/00 - Superconducting magnets Superconducting coils
  • H01J37/1416 - with supra-conducting coils

• US Classifications

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