1572137

Information

• Patent Grant
• 1572137

• References
• Source

• Patent Number

  1,572,137

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1926
  99 years ago

• CPC

  • B61L3/14 - to cut-off the power supply to traction motors of electrically-propelled vehicles

• US Classifications

  • 246 - Railway switches and signals
  • 340 - Communications: electrical