2986628

Information

• Patent Grant
• 2986628

• References
• Source

• Patent Number

  2,986,628

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1961
  63 years ago

• CPC

  • B61L23/12 - partly operated by train
  • B61L1/188 - Use of coded current

• US Classifications

  • 246 - Railway switches and signals
  • 361 - Electricity: electrical systems and devices