2630524

Information

• Patent Grant
• 2630524

• References
• Source

• Patent Number

  2,630,524

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1953
  72 years ago

• CPC

  • B61L23/161 - using current of indifferent sorte or a combination of different current types

• US Classifications

  • 246 - Railway switches and signals