1240707

Information

• Patent Grant
• 1240707

• References
• Source

• Patent Number

  1,240,707

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1917
  107 years ago

• CPC

  • F24C3/103 - of electric ignition devices
  • F23Q5/00 - Make-and-break ignition

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 313 - Electric lamp and discharge devices