2169926

Information

• Patent Grant
• 2169926

• References
• Source

• Patent Number

  2,169,926

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1939
  85 years ago

• CPC

  • B61L29/026 - Preventing access by means of obstacles raising across the route

• US Classifications

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