2052581

Information

• Patent Grant
• 2052581

• References
• Source

• Patent Number

  2,052,581

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1936
  88 years ago

• CPC

  • B61L7/083 - Common line wire control using currents of different amplitudes, polarities, frequencies, or the like

• US Classifications

  • 246 - Railway switches and signals