3471855

Information

• Patent Grant
• 3471855

• References
• Source

• Patent Number

  3,471,855

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1969
  55 years ago

• CPC

  • G01S7/4021 - of receivers
  • G01S7/4052 - by simulation of echoes
  • G01S2007/4073 - involving an IF signal injection

• US Classifications

  • 342 - Communications: directive radio wave systems and devices