3165739

Information

• Patent Grant
• 3165739

• References
• Source

• Patent Number

  3,165,739

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1965
  59 years ago

• CPC

  • G01S3/14 - Systems for determining direction or deviation from predetermined direction
  • G01S13/14 - wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo reception
  • G01S15/101 - Particularities of the measurement of distance
  • G04F10/00 - Apparatus for measuring unknown time intervals by electric means

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 324 - Electricity: measuring and testing
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 367 - Communications, electrical: acoustic wave systems and devices
  • 968 - Horology