1219951

Information

• Patent Grant
• 1219951

• References
• Source

• Patent Number

  1,219,951

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1917
  107 years ago

• CPC

  • G04B25/005 - in alarm clocks
  • Y10T74/118 - Winding knob trip [e.g., alarm mechanism]

• US Classifications

  • 074 - Machine element or mechanism
  • 200 - Electricity: circuit makers and breakers