2788399

Information

• Patent Grant
• 2788399

• References
• Source

• Patent Number

  2,788,399

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1957
  67 years ago

• CPC

  • G08B5/22 - using electric transmission using electro-magnetic transmission
  • G08C19/06 - using variable inductance

• US Classifications

  • 200 - Electricity: circuit makers and breakers