1215770

Information

• Patent Grant
• 1215770

• References
• Source

• Patent Number

  1,215,770

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1917
  108 years ago

• CPC

  • G03B21/18 - Fire preventing or extinguishing
  • Y10S200/11 - Web or thread actuated
  • Y10S200/26 - Slack cable operated

• US Classifications

  • 352 - Optics: motion pictures
  • 192 - Clutches and power-stop control
  • 200 - Electricity: circuit makers and breakers