3694650

Information

• Patent Grant
• 3694650

• References
• Source

• Patent Number

  3,694,650

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1972
  53 years ago

• CPC

  • B61K7/12 - electrically controlled

• US Classifications

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