2972485

Information

• Patent Grant
• 2972485

• References
• Source

• Patent Number

  2,972,485

• Date Filed

  Not available

• Date Issued

  Tuesday, February 21, 1961
  63 years ago

• CPC

  • B23Q3/1546 - using permanent magnets
  • B23B31/28 - using electric or magnetic means in the chuck
  • B23Q3/152 - Rotary devices
  • B23B2270/38 - Using magnetic fields

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets