2008505

Information

• Patent Grant
• 2008505

• References
• Source

• Patent Number

  2,008,505

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1935
  89 years ago

• CPC

  • H01J19/00 - Details of vacuum tubes of the types covered by group H01J21/00
  • H01J21/12 - Tubes with variable amplification factor
  • H01J2893/001 - Non-constructive schematic arrangements
  • H01J2893/0032 - Tubes with variable amplification factor

• US Classifications

  • 313 - Electric lamp and discharge devices