3801960

Information

• Patent Grant
• 3801960

• References
• Source

• Patent Number

  3,801,960

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1974
  50 years ago

• CPC

  • G08B26/004 - with common interrogation of substations

• US Classifications

  • 375 - Pulse or digital communications