3340362

Information

• Patent Grant
• 3340362

• References
• Source

• Patent Number

  3,340,362

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1967
  57 years ago

• CPC

  • H04M1/278 - using punched cards or tapes
  • H04M11/045 - using recorded signals

• US Classifications

  • 379 - Telephonic communications
  • 174 - Electricity: conductors and insulators