2457980

Information

• Patent Grant
• 2457980

• References
• Source

• Patent Number

  2,457,980

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1949
  76 years ago

• CPC

  • H03B13/00 - Generation of oscillations using deflection of electron beam in a cathode-ray tube
  • H01J25/66 - Tubes with electron stream crossing itself and thereby interacting or interfering with itself

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices