2065997

Information

• Patent Grant
• 2065997

• References
• Source

• Patent Number

  2,065,997

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1936
  88 years ago

• CPC

  • H01J17/063 - Indirectly heated cathodes

• US Classifications

  • 313 - Electric lamp and discharge devices