3626373

Information

• Patent Grant
• 3626373

• References
• Source

• Patent Number

  3,626,373

• Date Filed

  Not available

• Date Issued

  Tuesday, December 7, 1971
  53 years ago

• CPC

  • B61L3/246 - using coded current

• US Classifications

  • 340 - Communications: electrical
  • 246 - Railway switches and signals