3930223

Information

• Patent Grant
• 3930223

• References
• Source

• Patent Number

  3,930,223

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1975
  49 years ago

• CPC

  • B60C23/0467 - Electric contact means
  • B60C23/0422 - characterised by the type of signal transmission means

• US Classifications

  • 340 - Communications: electrical
  • 073 - Measuring and testing