1185740

Information

• Patent Grant
• 1185740

• References
• Source

• Patent Number

  1,185,740

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1916
  108 years ago

• CPC

  • G08B7/02 - using mechanical transmission

• US Classifications

  • 340 - Communications: electrical
  • 116 - Signals and indicators
  • 362 - Illumination