1895944

Information

• Patent Grant
• 1895944

• References
• Source

• Patent Number

  1,895,944

• Date Filed

  Not available

• Date Issued

  Tuesday, January 31, 1933
  92 years ago

• CPC

  • H01J13/20 - Control electrodes
  • H01J2893/0092 - Anodic screens or grids

• US Classifications

  • 313 - Electric lamp and discharge devices