419924

Information

• Patent Grant
• 419924

• References
• Source

• Patent Number

  419,924

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1890
  135 years ago

• CPC

  • H01H35/34 - actuated by diaphragm
  • Y10S200/16 - Gas detector

• US Classifications

  • 200 - Electricity: circuit makers and breakers