3787842

Information

• Patent Grant
• 3787842

• References
• Source

• Patent Number

  3,787,842

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1974
  50 years ago

• CPC

  • G01S13/524 - based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals
  • G01S13/587 - using optical means

• US Classifications

  • 342 - Communications: directive radio wave systems and devices