2250856

Information

• Patent Grant
• 2250856

• References
• Source

• Patent Number

  2,250,856

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1941
  84 years ago

• CPC

  • H04Q5/16 - by predetermined number of pulses
  • H04L15/26 - Operating only on reception of predetermined code signals

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets