3401389

Information

• Patent Grant
• 3401389

• References
• Source

• Patent Number

  3,401,389

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1968
  56 years ago

• CPC

  • G01S1/10 - using amplitude comparison of signals transmitted sequentially from aerials or aerial systems having differently-oriented overlapping directivity-characteristics
  • G01S1/42 - Conical-scan beacons transmitting signals which indicate at a mobile receiver any displacement of the receiver from the conical-scan axis

• US Classifications

  • 342 - Communications: directive radio wave systems and devices