759449

Information

• Patent Grant
• 759449

• References
• Source

• Patent Number

  759,449

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1904
  120 years ago

• CPC

  • G10K9/04 - by compressed gases
  • Y10S200/14 - Rail or leak indicator

• US Classifications

  • 116 - Signals and indicators
  • 073 - Measuring and testing
  • 200 - Electricity: circuit makers and breakers
  • 340 - Communications: electrical