1776503

Information

• Patent Grant
• 1776503

• References
• Source

• Patent Number

  1,776,503

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1930
  94 years ago

• CPC

  • H01H21/56 - making contact in one position only

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 218 - High-voltage switches with arc preventing or extinguishing devices