1723461

Information

• Patent Grant
• 1723461

• References
• Source

• Patent Number

  1,723,461

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1929
  95 years ago

• CPC

  • G01S3/12 - Means for determining sense of direction
  • G01S3/065 - by using non-directional aerial
  • G01S3/085 - by using spaced loop aerial systems

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 343 - Communications: radio wave antennas