1678577

Information

• Patent Grant
• 1678577

• References
• Source

• Patent Number

  1,678,577

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1928
  97 years ago

• CPC

  • B61L3/106 - with mechanically controlled electrical switch on the vehicle

• US Classifications

  • 246 - Railway switches and signals
  • 303 - Fluid-pressure and analogous brake systems