1992277

Information

• Patent Grant
• 1992277

• References
• Source

• Patent Number

  1,992,277

• Date Filed

  Not available

• Date Issued

  Tuesday, February 26, 1935
  89 years ago

• CPC

  • H01H9/26 - for interlocking two or more switches
  • H02J9/066 - characterised by the use of dynamo-electric machines
  • H02P1/025 - Protection against starting if starting resistor is not at zero position
  • Y10T307/344 - Substitute or alternate source
  • Y10T307/367 - AC and DC

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 200 - Electricity: circuit makers and breakers