3271519

Information

• Patent Grant
• 3271519

• References
• Source

• Patent Number

  3,271,519

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1966
  58 years ago

• CPC

  • H03G3/06 - having discharge tubes
  • H04M9/001 - Two-way communication systems between a limited number of parties

• US Classifications

  • 379 - Telephonic communications
  • 455 - Telecommunications