2998514

Information

• Patent Grant
• 2998514

• References
• Source

• Patent Number

  2,998,514

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1961
  63 years ago

• CPC

  • B61L1/187 - Use of alternating current
  • B61L21/06 - Vehicle-on-line indication Monitoring locking and release of the route
  • B61L23/12 - partly operated by train

• US Classifications

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