2589216

Information

• Patent Grant
• 2589216

• References
• Source

• Patent Number

  2,589,216

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1952
  72 years ago

• CPC

  • G01S7/40 - Means for monitoring or calibrating
  • G01S1/02 - using radio waves
  • G01S1/06 - Means for providing multiple indication

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 455 - Telecommunications