1942997

Information

• Patent Grant
• 1942997

• References
• Source

• Patent Number

  1,942,997

• Date Filed

  Not available

• Date Issued

  Tuesday, January 9, 1934
  91 years ago

• CPC

  • H02K27/10 - with switching devices for different modes of operation

• US Classifications

  • 310 - Electrical generator or motor structure
  • 200 - Electricity: circuit makers and breakers