3440505

Information

• Patent Grant
• 3440505

• References
• Source

• Patent Number

  3,440,505

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  55 years ago

• CPC

  • G05D3/122 - without modulation

• US Classifications

  • 318 - Electricity: motive power systems
  • 342 - Communications: directive radio wave systems and devices