2219449

Information

• Patent Grant
• 2219449

• References
• Source

• Patent Number

  2,219,449

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • H03C1/32 - by deflection of electron beam in discharge tube
  • H03F1/04 - in discharge-tube amplifiers
  • H03F1/06 - to raise the efficiency of amplifying modulated radio frequency waves to raise the efficiency of amplifiers acting also as modulators

• US Classifications

  • 332 - Modulators
  • 455 - Telecommunications