3551754

Information

• Patent Grant
• 3551754

• References
• Source

• Patent Number

  3,551,754

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1970
  54 years ago

• CPC

  • H01H47/06 - by changing number of serially-connected turns or windings

• US Classifications

  • 361 - Electricity: electrical systems and devices
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 379 - Telephonic communications