3596003

Information

• Patent Grant
• 3596003

• References
• Source

• Patent Number

  3,596,003

• Date Filed

  Not available

• Date Issued

  Tuesday, July 27, 1971
  53 years ago

• CPC

  • H04M1/278 - using punched cards or tapes

• US Classifications

  • 379 - Telephonic communications