3900261

Information

• Patent Grant
• 3900261

• References
• Source

• Patent Number

  3,900,261

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1975
  49 years ago

• CPC

  • G01S13/14 - wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo reception
  • G01S17/105 - wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo-reception

• US Classifications

  • 356 - Optics: measuring and testing
  • 342 - Communications: directive radio wave systems and devices