2200570

Information

• Patent Grant
• 2200570

• References
• Source

• Patent Number

  2,200,570

• Date Filed

  Not available

• Date Issued

  Tuesday, May 14, 1940
  84 years ago

• CPC

  • B61L1/04 - mechanically actuated by a part of the vehicle
  • B61L29/284 - using rail-contacts, rail microphones, or the like, controlled by the vehicle

• US Classifications

  • 246 - Railway switches and signals
  • 049 - Movable or removable closures
  • 200 - Electricity: circuit makers and breakers