2036444

Information

• Patent Grant
• 2036444

• References
• Source

• Patent Number

  2,036,444

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1936
  88 years ago

• CPC

  • G01S3/64 - wherein the phase angle of the signal is determined by phase comparison with a reference alternating signal varying in synchronism with the directivity variation
  • G01C17/30 - Earth-inductor compasses
  • G01R25/00 - Arrangements for measuring phase angle between a voltage and a current, or between voltages or currents
  • G01R29/08 - Measuring electromagnetic field characteristics
  • G01S3/30 - derived directly from separate directional systems
  • G01V3/00 - Electric or magnetic prospecting or detecting Measuring magnetic field characteristics of the earth
  • G04D7/1214 - for complete clockworks

• US Classifications

  • 324 - Electricity: measuring and testing
  • 033 - Geometrical instruments
  • 968 - Horology