3810187

Information

• Patent Grant
• 3810187

• References
• Source

• Patent Number

  3,810,187

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • H01Q19/026 - for reducing the primary feed spill-over
  • H01Q17/001 - for modifying the directional characteristic of an aerial

• US Classifications

  • 343 - Communications: radio wave antennas