2687500

Information

• Patent Grant
• 2687500

• References
• Source

• Patent Number

  2,687,500

• Date Filed

  Not available

• Date Issued

  Tuesday, August 24, 1954
  70 years ago

• CPC

  • H01H1/065 - formed by freely suspended particles
  • Y10T29/49076 - From comminuted material

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 029 - Metal working
  • 333 - Wave transmission lines and networks
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 336 - Inductor devices
  • 338 - Electrical resistors