1842128

Information

• Patent Grant
• 1842128

• References
• Source

• Patent Number

  1,842,128

• Date Filed

  Not available

• Date Issued

  Tuesday, January 19, 1932
  93 years ago

• CPC

  • B61L29/224 - using rail contacts

• US Classifications

  • 246 - Railway switches and signals
  • 200 - Electricity: circuit makers and breakers