3870881

Information

• Patent Grant
• 3870881

• References
• Source

• Patent Number

  3,870,881

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1975
  49 years ago

• CPC

  • H01J49/326 - with magnetic and electrostatic sectors of 90 degrees
  • G01N27/62 - by investigating the ionisation of gases by investigating electric discharges

• US Classifications

  • 250 - Radiant energy