2146994

Information

• Patent Grant
• 2146994

• References
• Source

• Patent Number

  2,146,994

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1939
  86 years ago

• CPC

  • H01J29/435 - with a matrix of conductors traversing the target

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 428 - Stock material or miscellaneous articles
  • 445 - Electric lamp or space discharge component or device manufacturing