3552692

Information

• Patent Grant
• 3552692

• References
• Source

• Patent Number

  3,552,692

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1971
  53 years ago

• CPC

  • B61L3/225 - using separate conductors along the route
  • B61L13/047 - controlling inductively or magnetically

• US Classifications

  • 246 - Railway switches and signals