2831172

Information

• Patent Grant
• 2831172

• References
• Source

• Patent Number

  2,831,172

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1958
  67 years ago

• CPC

  • H01P3/18 - built-up from several layers to increase operating surface

• US Classifications

  • 333 - Wave transmission lines and networks
  • 178 - Telegraphy