1641278

Information

• Patent Grant
• 1641278

• References
• Source

• Patent Number

  1,641,278

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1927
  97 years ago

• CPC

  • G08B13/1436 - with motion detection
  • Y10S200/08 - Disturbance

• US Classifications

  • 200 - Electricity: circuit makers and breakers