1917486

Information

• Patent Grant
• 1917486

• References
• Source

• Patent Number

  1,917,486

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1933
  91 years ago

• CPC

  • F03G1/00 - Spring-motor
  • F03G2730/02 - Spring motors with helical springs

• US Classifications

  • 267 - Spring devices
  • 185 - Motors: spring, weight, or animal powered
  • 362 - Illumination