3021516

Information

• Patent Grant
• 3021516

• References
• Source

• Patent Number

  3,021,516

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1962
  63 years ago

• CPC

  • H04L15/22 - Apparatus or circuits for sending one or a restricted number of signals
  • G01S1/02 - using radio waves

• US Classifications

  • 178 - Telegraphy
  • 341 - Coded data generation or conversion
  • 342 - Communications: directive radio wave systems and devices