1894940

Information

• Patent Grant
• 1894940

• References
• Source

• Patent Number

  1,894,940

• Date Filed

  Not available

• Date Issued

  Tuesday, January 24, 1933
  91 years ago

• CPC

  • B61L29/20 - mechanically

• US Classifications

  • 246 - Railway switches and signals
  • 049 - Movable or removable closures