2448570

Information

• Patent Grant
• 2448570

• References
• Source

• Patent Number

  2,448,570

• Date Filed

  Not available

• Date Issued

  Tuesday, September 7, 1948
  76 years ago

• CPC

  • B61L1/182 - Use of current of indifferent sort or a combination of different current types

• US Classifications

  • 246 - Railway switches and signals