3256517

Information

• Patent Grant
• 3256517

• References
• Source

• Patent Number

  3,256,517

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1966
  58 years ago

• CPC

  • G08B26/007 - Wireless interrogation
  • G08B26/00 - Alarm systems in which substations are interrogated in succession by a central station
  • G08B26/002 - only replying the state of the sensor
  • G08B26/003 - replying the identity and the state of the sensor

• US Classifications

  • 340 - Communications: electrical