3577205

Information

• Patent Grant
• 3577205

• References
• Source

• Patent Number

  3,577,205

• Date Filed

  Not available

• Date Issued

  Tuesday, May 4, 1971
  54 years ago

• CPC

  • H01J31/503 - with an electromagnetic electron-optic system
  • G02B27/646 - compensating for small deviations

• US Classifications

  • 250 - Radiant energy
  • 359 - Optical: systems and elements
  • 396 - Photography