2491590

Information

• Patent Grant
• 2491590

• References
• Source

• Patent Number

  2,491,590

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1949
  75 years ago

• CPC

  • H03C3/06 - Means for changing frequency deviation
  • H03C1/22 - modulating signal applied to same grid

• US Classifications

  • 332 - Modulators
  • 455 - Telecommunications