3922631

Information

• Patent Grant
• 3922631

• References
• Source

• Patent Number

  3,922,631

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • G01S15/101 - Particularities of the measurement of distance
  • G01S7/6227 - Plan-position indicators

• US Classifications

  • 367 - Communications, electrical: acoustic wave systems and devices