3116471

Information

• Patent Grant
• 3116471

• References
• Source

• Patent Number

  3,116,471

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1963
  61 years ago

• CPC

  • G01S3/8083 - determining direction of source
  • G01S1/72 - using ultrasonic, sonic or infrasonic waves
  • G01S3/8036 - derived directly from separate directional systems

• US Classifications

  • 367 - Communications, electrical: acoustic wave systems and devices
  • 318 - Electricity: motive power systems