1817172

Information

• Patent Grant
• 1817172

• References
• Source

• Patent Number

  1,817,172

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1931
  93 years ago

• CPC

  • H02K7/1026 - using stray fields

• US Classifications

  • 310 - Electrical generator or motor structure
  • 318 - Electricity: motive power systems
  • 324 - Electricity: measuring and testing