2220484

Information

• Patent Grant
• 2220484

• References
• Source

• Patent Number

  2,220,484

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1940
  84 years ago

• CPC

  • B61L29/286 - using conductor circuits controlled by the vehicle
  • B61L29/288 - Wiring diagram of the signal control circuits

• US Classifications

  • 246 - Railway switches and signals