2277841

Information

• Patent Grant
• 2277841

• References
• Source

• Patent Number

  2,277,841

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1942
  82 years ago

• CPC

  • H03D1/26 - by means of transit-time tubes
  • A45D6/02 - Devices for winding the hair upon steep-curlers
  • H03D11/02 - for amplitude-modulated oscillations

• US Classifications

  • 455 - Telecommunications