1867428

Information

• Patent Grant
• 1867428

• References
• Source

• Patent Number

  1,867,428

• Date Filed

  Not available

• Date Issued

  Tuesday, July 12, 1932
  91 years ago

• CPC

  • H01H19/50 - the operating part having four operative positions

• US Classifications

  • 219 - Electric heating
  • 200 - Electricity: circuit makers and breakers