2972074

Information

• Patent Grant
• 2972074

• References
• Source

• Patent Number

  2,972,074

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1961
  63 years ago

• CPC

  • H01J29/54 - Arrangements for centring ray or beam

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 313 - Electric lamp and discharge devices