3699331

Information

• Patent Grant
• 3699331

• References
• Source

• Patent Number

  3,699,331

• Date Filed

  Not available

• Date Issued

  Tuesday, October 17, 1972
  53 years ago

• CPC

  • H01J49/282 - using electrostatic analysers
  • H01J49/482 - with cylindrical mirrors
  • H01J49/484 - with spherical mirrors

• US Classifications

  • 250 - Radiant energy
  • 850 - Scanning-probe techniques or apparatus