1587657

Information

• Patent Grant
• 1587657

• References
• Source

• Patent Number

  1,587,657

• Date Filed

  Not available

• Date Issued

  Tuesday, June 8, 1926
  99 years ago

• CPC

  • G01S3/085 - by using spaced loop aerial systems

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 455 - Telecommunications