1420789

Information

• Patent Grant
• 1420789

• References
• Source

• Patent Number

  1,420,789

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1922
  103 years ago

• CPC

  • H02P1/26 - for starting an individual polyphase induction motor
  • H01H2001/001 - providing easy replacement of contacts

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 114 - Ships