2421785

Information

• Patent Grant
• 2421785

• References
• Source

• Patent Number

  2,421,785

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1947
  78 years ago

• CPC

  • G01S11/023 - using impedance elements varying with distance

• US Classifications

  • 342 - Communications: directive radio wave systems and devices