3626248

Information

• Patent Grant
• 3626248

• References
• Source

• Patent Number

  3,626,248

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1971
  53 years ago

• CPC

  • G08C19/30 - in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels
  • G08B26/00 - Alarm systems in which substations are interrogated in succession by a central station

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 324 - Electricity: measuring and testing
  • 340 - Communications: electrical