3665245

Information

• Patent Grant
• 3665245

• References
• Source

• Patent Number

  3,665,245

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1972
  52 years ago

• CPC

  • H01J41/14 - with ionisation by means of thermionic cathodes
  • H01J41/06 - with ionisation by means of cold cathodes

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 250 - Radiant energy
  • 313 - Electric lamp and discharge devices
  • 324 - Electricity: measuring and testing