3366747

Information

• Patent Grant
• 3366747

• References
• Source

• Patent Number

  3,366,747

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1968
  57 years ago

• CPC

  • G05D3/127 - with electrical contact
  • H04M1/272 - with provision for storing only one subscriber number at a time
  • H04M1/278 - using punched cards or tapes

• US Classifications

  • 341 - Coded data generation or conversion
  • 379 - Telephonic communications