2156671

Information

• Patent Grant
• 2156671

• References
• Source

• Patent Number

  2,156,671

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1939
  85 years ago

• CPC

  • B61L19/06 - Interlocking devices having electrical operation
  • B61L19/08 - Special arrangements for power supply for interlocking devices

• US Classifications

  • 246 - Railway switches and signals