3665382

Information

• Patent Grant
• 3665382

• References
• Source

• Patent Number

  3,665,382

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1972
  52 years ago

• CPC

  • H03K17/9545 - with variable frequency
  • G08G1/042 - using inductive or magnetic detectors
  • H03K17/9547 - with variable amplitude

• US Classifications

  • 340 - Communications: electrical