2663840

Information

• Patent Grant
• 2663840

• References
• Source

• Patent Number

  2,663,840

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1953
  71 years ago

• CPC

  • H02P1/023 - Protection against sparking of contacts or sticking together

• US Classifications

  • 322 - Electricity: single generator systems
  • 318 - Electricity: motive power systems