2845567

Information

• Patent Grant
• 2845567

• References
• Source

• Patent Number

  2,845,567

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1958
  66 years ago

• CPC

  • H01J17/063 - Indirectly heated cathodes

• US Classifications

  • 313 - Electric lamp and discharge devices