3544888

Information

• Patent Grant
• 3544888

• References
• Source

• Patent Number

  3,544,888

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1970
  54 years ago

• CPC

  • G01R5/28 - Electrostatic instruments
  • B64G1/66 - Arrangements or adaptations of apparatus or instruments, not otherwise provided for
  • H01J21/14 - Tubes with means for concentrating the electron stream
  • H01J2893/0029 - Electron beam tubes

• US Classifications

  • 324 - Electricity: measuring and testing
  • 313 - Electric lamp and discharge devices