1999407

Information

• Patent Grant
• 1999407

• References
• Source

• Patent Number

  1,999,407

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1935
  89 years ago

• CPC

  • H02N11/006 - Motors
  • Y10S200/21 - Pencil, counter or dispenser operated
  • Y10S200/36 - Light operated switches
  • Y10T307/872 - Repetitive make and break

• US Classifications

  • 310 - Electrical generator or motor structure
  • 200 - Electricity: circuit makers and breakers
  • 307 - Electrical transmission or interconnection systems
  • 313 - Electric lamp and discharge devices
  • 318 - Electricity: motive power systems
  • 324 - Electricity: measuring and testing
  • 331 - Oscillators
  • 348 - Television