3440353

Information

• Patent Grant
• 3440353

• References
• Source

• Patent Number

  3,440,353

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  55 years ago

• CPC

  • H04W88/187 - using digital or pulse address codes
  • H04B7/17 - employing pulse modulation

• US Classifications

  • 370 - Multiplex communications
  • 340 - Communications: electrical
  • 375 - Pulse or digital communications