3821741

Information

• Patent Grant
• 3821741

• References
• Source

• Patent Number

  3,821,741

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • G01S3/146 - by comparing linear polarisation components
  • H01P1/16 - for mode selection
  • H01Q25/04 - Multimode aerials

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 343 - Communications: radio wave antennas