838385

Information

• Patent Grant
• 838385

• References
• Source

• Patent Number

  838,385

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1906
  118 years ago

• CPC

  • G08B17/04 - Hydraulic or pneumatic actuation of the alarm
  • Y10S246/02 - Thermal sensing devices

• US Classifications

  • 116 - Signals and indicators
  • 246 - Railway switches and signals