3875489

Information

• Patent Grant
• 3875489

• References
• Source

• Patent Number

  3,875,489

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • H02K41/031 - of the permanent magnet type
  • D05B69/10 - Electrical or electromagnetic drives
  • H02P5/46 - for speed regulation of two or more dynamo-electric motors in relation to one another
  • H02P5/51 - Direct ratio control

• US Classifications

  • 318 - Electricity: motive power systems
  • 112 - Sewing