3487411

Information

• Patent Grant
• 3487411

• References
• Source

• Patent Number

  3,487,411

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1969
  55 years ago

• CPC

  • G01S1/14 - using amplitude comparison of signals transmitted simultaneously from aerials or aerial systems having differently-oriented overlapping directivity-characteristics
  • G01S1/10 - using amplitude comparison of signals transmitted sequentially from aerials or aerial systems having differently-oriented overlapping directivity-characteristics

• US Classifications

  • 342 - Communications: directive radio wave systems and devices