1411780

Information

• Patent Grant
• 1411780

• References
• Source

• Patent Number

  1,411,780

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1922
  102 years ago

• CPC

  • B61K13/04 - Passenger-warning devices attached to vehicles Safety devices for preventing accidents to passengers when entering or leaving vehicles

• US Classifications

  • 105 - Railway rolling stock
  • 116 - Signals and indicators
  • 246 - Railway switches and signals