2748307

Information

• Patent Grant
• 2748307

• References
• Source

• Patent Number

  2,748,307

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1956
  68 years ago

• CPC

  • H01J21/18 - having magnetic control means having both magnetic and electro-static control means

• US Classifications

  • 313 - Electric lamp and discharge devices