2020813

Information

• Patent Grant
• 2020813

• References
• Source

• Patent Number

  2,020,813

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1935
  89 years ago

• CPC

  • H03H11/346 - particularly adapted as input circuit for receivers

• US Classifications

  • 455 - Telecommunications
  • 330 - Amplifiers
  • 333 - Wave transmission lines and networks
  • 343 - Communications: radio wave antennas