3009993

Information

• Patent Grant
• 3009993

• References
• Source

• Patent Number

  3,009,993

• Date Filed

  Not available

• Date Issued

  Tuesday, November 21, 1961
  63 years ago

• CPC

  • H01H9/0005 - Tap change devices
  • H01F29/02 - with tappings on coil or winding with provision for rearrangement or interconnection of windings
  • H01H21/18 - Movable parts Contacts mounted thereon
  • H01H21/48 - incorporating a ratchet mechanism

• US Classifications

  • 200 - Electricity: circuit makers and breakers