811037

Information

• Patent Grant
• 811037

• References
• Source

• Patent Number

  811,037

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1906
  119 years ago

• CPC

  • B61K13/04 - Passenger-warning devices attached to vehicles Safety devices for preventing accidents to passengers when entering or leaving vehicles
  • Y10S200/30 - Fluid conductor
  • Y10S200/31 - Fluid flow

• US Classifications

  • 246 - Railway switches and signals
  • 200 - Electricity: circuit makers and breakers