2491681

Information

• Patent Grant
• 2491681

• References
• Source

• Patent Number

  2,491,681

• Date Filed

  Not available

• Date Issued

  Tuesday, December 20, 1949
  75 years ago

• CPC

  • H03H7/0146 - Coupling circuits between two tubes, not otherwise provided for
  • H01P1/202 - Coaxial filters

• US Classifications

  • 333 - Wave transmission lines and networks