2075639

Information

• Patent Grant
• 2075639

• References
• Source

• Patent Number

  2,075,639

• Date Filed

  Not available

• Date Issued

  Tuesday, March 30, 1937
  87 years ago

• CPC

  • H01J19/38 - Control electrodes
  • H01J2893/0018 - Bar or cage-like grids
  • Y10T29/49117 - Conductor or circuit manufacturing

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing
  • 029 - Metal working
  • 140 - Wireworking
  • 313 - Electric lamp and discharge devices