2740870

Information

• Patent Grant
• 2740870

• References
• Source

• Patent Number

  2,740,870

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1956
  68 years ago

• CPC

  • H01H63/02 - Contacts Wipers Connections thereto
  • H01H1/12 - characterised by the manner in which co-operating contacts engage
  • H04M1/31 - by interrupting current to generate trains of pulses by periodically opening and closing contacts to generate trains of pulses

• US Classifications

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