3749856

Information

• Patent Grant
• 3749856

• References
• Source

• Patent Number

  3,749,856

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1973
  51 years ago

• CPC

  • H04B3/36 - Repeater circuits
  • H04B3/18 - wherein the network comprises semiconductor devices

• US Classifications

  • 379 - Telephonic communications