2174154

Information

• Patent Grant
• 2174154

• References
• Source

• Patent Number

  2,174,154

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1939
  85 years ago

• CPC

  • H03F1/13 - in discharge tube amplifiers
  • H03L7/04 - wherein the frequency-determining element comprises distributed inductance and capacitance
  • H04B1/04 - Circuits
  • H04N5/40 - Modulation circuits

• US Classifications

  • 332 - Modulators
  • 348 - Television
  • 455 - Telecommunications