1904524

Information

• Patent Grant
• 1904524

• References
• Source

• Patent Number

  1,904,524

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1933
  91 years ago

• CPC

  • H03F1/36 - in discharge-tube amplifiers
  • H03F1/40 - in discharge-tube amplifiers

• US Classifications

  • 330 - Amplifiers
  • 455 - Telecommunications