2502687

Information

• Patent Grant
• 2502687

• References
• Source

• Patent Number

  2,502,687

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1950
  75 years ago

• CPC

  • H04J3/042 - Distributors with electron or gas discharge tubes
  • H03K3/04 - by the use, as active elements, of vacuum tubes only, with positive feedback
  • H03K3/06 - using at least two tubes so coupled that the input of one is derived from the output of another
  • Y10S84/11 - Frequency dividers
  • Y10S84/13 - Gas discharge tube

• US Classifications

  • 370 - Multiplex communications
  • 084 - Music
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 331 - Oscillators